Patrick Kelly at the University of California, Berkeley and his colleagues found the star in Hubble Space Telescope
images of a galaxy cluster called MACS J1149.
No one had taken ultra-deep
images of a galaxy cluster with Hubble or Spitzer.
This image of galaxy cluster Abell 2744, also called Pandora's Cluster, was taken by the Spitzer Space Telescope.
The ultra-deep
images of galaxy clusters are revealing the faintest galaxies ever studied, magnified by gravitational lensing.
Our observations yield the deepest mid and far - infrared
images of a galaxy cluster ever achieved.
Not exact matches
A newly released
image from NASA Hubble telescope reveals that a huge
cluster of galaxies called Abell 370, has an array
of galaxies guarding it and is useful in studying far - flung
galaxies by its gravitational lensing property.
The gravity from all that mass redirects any light that tries to sneak past, bending and focusing it, creating bigger and brighter
images of galaxies far beyond the
cluster.
As well as the SMC itself this very wide - field
image reveals many background
galaxies and several star
clusters, including the very bright 47 Tucanae globular
cluster at the right
of the picture.
Follow - up
images and analyses, posted June 30 at arXiv.org, showed that light is probably from a single bright blue star that coincidentally was behind the
galaxy cluster, aligned along Hubble's line
of sight.
Images of M32, a dwarf elliptical
galaxy near to our own, show that stars become
clustered much more closely together near its centre, which is what should happen if the
galaxy contains a black hole.
Astronomers exploit this property
of space to use the
clusters as a zoom lens to magnify the
images of far - more - distant
galaxies that otherwise would be too faint to be seen.
Astronomer Tiantian Yuan at Swinburne University
of Technology in Melbourne, Australia and colleagues found the new record - holder thanks to a closer
cluster of galaxies, which acted as a gravitational lens that helped astronomers produce two magnified
images of A1689B11 (SN: 3/10/12, p. 4).
In this full - sky
image, created with data from the new Planck space telescope, red and orange areas represent primordial lumps that gave rise to giant
clusters of galaxies.
Ellis, his PhD student Dan Stark and their colleagues trained one
of the world's biggest telescopes, the Keck 2 atop Hawaii's Mauna Kea, to scan light grazing massive
clusters of closer
galaxies [see
image above], which focused the light coming from more ancient
galaxies behind them and magnified it 20 times in a process called gravitational lensing.
LIGHTEN UP Some
of the faintest, most distant
galaxies detected to date (arcs) appear in this Hubble Space Telescope
image of the massive
galaxy cluster Abell 2744.
Some
of the most dramatic evidence
of dark matter shows up in
images of large
clusters of galaxies.
The gravitational pull
of matter in the
cluster bends and twists the light from more distant
galaxies, producing a plethora
of strange optical effects ranging from distorted arcs to multiple
images of the same background object.
Above left: Galaxy
cluster CL0024 +1654 bends the light
of more distant
galaxies, producing the peculiar arc - shaped formations in this groundbreaking Hubble
image.
A team using the Hubble Space Telescope found the invisible ring, which extends 2.6 million light - years across [see
image above], while mapping the distribution
of dark matter in the
galaxy cluster CL 0024 +17.
In the Fornax
cluster (right) the core cloud is swept back like a comet's tail toward the top
of the
image, indicating it is moving through even more diffuse gas on a collision course with the
galaxy at lower left.
A composite
image shows the
galaxy NGC 4522 in the Virgo
Cluster, the nearest large cluster of galaxies to our own local group of galaxies, and the «wake» of gas and dust being blown from the
Cluster, the nearest large
cluster of galaxies to our own local group of galaxies, and the «wake» of gas and dust being blown from the
cluster of galaxies to our own local group
of galaxies, and the «wake»
of gas and dust being blown from the
galaxy.
The analysis is based on Hubble
images of a spiral
galaxy in the Coma
cluster, located 300 million light years from Earth.
This Hubble Space Telescope
image of a spiral
galaxy in the Coma
cluster highlights dust extinction features.
Astronomers spotted the space rocks — plus another two that had been previously cataloged — in
images collected as part
of the Frontier Fields project, which observed six
clusters of galaxies billions
of light - years away.
The
cluster's immense gravitational field magnifies the
image of galaxies far behind it, in a phenomenon called gravitational lensing.
In the end success was secured by the fact that the stone - dead
galaxy was positioned behind a foreground
cluster of other
galaxies — a
cluster which functioned as a «natural lens» by amplifying as well as enlarging the
image of MACS2129 - 1.
However, through the phenomenon known as «gravitational lensing,» a massive, foreground
cluster of galaxies acts as a natural «zoom lens» in space by magnifying and stretching
images of far more distant background
galaxies.
Countless
galaxies vie for attention in this dazzling
image of the Fornax
Cluster, some appearing only as pinpricks
of light while others dominate the foreground.
The Heidelberg research was based on long - exposure
images of the Perseus
galaxy cluster obtained in 2012 with the 4.2 metre William Herschel Telescope on the Canary Island
of La Palma.
A striking
image presented here 3 June at the meeting
of the American Astronomical Society shows a globular
cluster known as Palomar 5 being torn asunder by tidal forces
of our home
galaxy.
If the light from a distant
galaxy reaches us having passed through a
cluster of say, four stars, she wondered, then how many
images might we see?
Astronomers are studying the combined
image in an attempt to decipher the sequence
of galaxy -
cluster collisions.
«Shocking results
of galaxy -
cluster collisions: Multi-wavelength
image helping astronomers decipher complex collision history.»
This
image of Abell 2744 is the first to come from Hubble's Frontier Fields observing programme, which is using the magnifying power
of enormous
galaxy clusters to peer deep into the distant Universe.
The
images depict hundreds
of galaxies merging into a huge
cluster called Abell 520, located about 2.4 billion light - years away.
To make these discoveries, the team utilised the deepest
images of gravitational lensing made so far in three
galaxy clusters, which were taken as part
of the Hubble Frontier Fields programme [4].
The magnifications and staggered arrivals
of the supernova
images probe the cosmic expansion rate, as well as the distribution
of matter in the
galaxy and
cluster lenses.
Zitrin's team spotted the
galaxy's gravitationally multiplied
images using near - infrared and visible - light photos
of the
galaxy cluster taken by Hubble's Wide Field Camera 3 and Advanced Camera for Surveys.
The heart
of the mammoth
galaxy cluster Abell 2744, also known as Pandora's Cluster, is shown in this Hubble Space Telescope
cluster Abell 2744, also known as Pandora's
Cluster, is shown in this Hubble Space Telescope
Cluster, is shown in this Hubble Space Telescope
image.
Most gas rich
galaxies are located in the outer part, not the center,
of the
galaxy cluster (around the center
of the
image).
In this new discovery, the lensing power
of the mammoth
galaxy cluster Abell 2744, nicknamed Pandora's Cluster, produced three magnified images of the same
cluster Abell 2744, nicknamed Pandora's
Cluster, produced three magnified images of the same
Cluster, produced three magnified
images of the same
galaxy.
Elsewhere in the
image, we can look into Orion A's dark molecular clouds and spot many hidden treasures, including discs
of material that could give birth to new stars (pre-stellar discs), nebulosity associated with newly - born stars (Herbig - Haro objects), smaller star
clusters and even
galaxy clusters lying far beyond the Milky Way.
The
cluster's powerful gravity warps the
images of background
galaxies into blue streaks and arcs that give the illusion
of being inside the
cluster, an effect known as gravitational lensing.
This animation illustrates how the powerful gravity
of a massive
galaxy cluster bends and focuses the light from a supernova behind it, resulting in multiple
images of the exploding star.
An
image taken with the Hubble Space Telescope
of Abell 1689, a massive
cluster of galaxies whose gravitational pull is so strong that it bends light, acting like a lens.
g (acceleration due to gravity) G (gravitational constant) G star G1.9 +0.3 gabbro Gabor, Dennis (1900 — 1979) Gabriel's Horn Gacrux (Gamma Crucis) gadolinium Gagarin, Yuri Alexeyevich (1934 — 1968) Gagarin Cosmonaut Training Center GAIA Gaia Hypothesis galactic anticenter galactic bulge galactic center Galactic Club galactic coordinates galactic disk galactic empire galactic equator galactic habitable zone galactic halo galactic magnetic field galactic noise galactic plane galactic rotation galactose Galatea
GALAXIES galaxy galaxy cannibalism
galaxy classification
galaxy formation
galaxy interaction
galaxy merger
Galaxy, The
Galaxy satellite series Gale Crater Galen (c. AD 129 — c. 216) galena GALEX (
Galaxy Evolution Explorer) Galilean satellites Galilean telescope Galileo (Galilei, Galileo)(1564 — 1642) Galileo (spacecraft) Galileo Europa Mission (GEM) Galileo satellite navigation system gall gall bladder Galle, Johann Gottfried (1812 — 1910) gallic acid gallium gallon gallstone Galois, Évariste (1811 — 1832) Galois theory Galton, Francis (1822 — 1911) Galvani, Luigi (1737 — 1798) galvanizing galvanometer game game theory GAMES AND PUZZLES gamete gametophyte Gamma (Soviet orbiting telescope) Gamma Cassiopeiae Gamma Cassiopeiae star gamma function gamma globulin gamma rays Gamma Velorum gamma - ray burst gamma - ray satellites Gamow, George (1904 — 1968) ganglion gangrene Ganswindt, Hermann (1856 — 1934) Ganymede «garbage theory»,
of the origin
of life Gardner, Martin (1914 — 2010) Garneau, Marc (1949 ---RRB- garnet Garnet Star (Mu Cephei) Garnet Star Nebula (IC 1396) garnierite Garriott, Owen K. (1930 ---RRB- Garuda gas gas chromatography gas constant gas giant gas laws gas - bounded nebula gaseous nebula gaseous propellant gaseous - propellant rocket engine gasoline Gaspra (minor planet 951) Gassendi, Pierre (1592 — 1655) gastric juice gastrin gastrocnemius gastroenteritis gastrointestinal tract gastropod gastrulation Gatewood, George D. (1940 ---RRB- Gauer - Henry reflex gauge boson gauge theory gauss (unit) Gauss, Carl Friedrich (1777 — 1855) Gaussian distribution Gay - Lussac, Joseph Louis (1778 — 1850) GCOM (Global Change Observing Mission) Geber (c. 720 — 815) gegenschein Geiger, Hans Wilhelm (1882 — 1945) Geiger - Müller counter Giessler tube gel gelatin Gelfond's theorem Gell - Mann, Murray (1929 ---RRB- GEM «gemination,»
of martian canals Geminga Gemini (constellation) Gemini Observatory Gemini Project Gemini - Titan II gemstone gene gene expression gene mapping gene pool gene therapy gene transfer General Catalogue
of Variable Stars (GCVS) general precession general theory
of relativity generation ship generator Genesis (inflatable orbiting module) Genesis (sample return probe) genetic code genetic counseling genetic disorder genetic drift genetic engineering genetic marker genetic material genetic pool genetic recombination genetics GENETICS AND HEREDITY Geneva Extrasolar Planet Search Program genome genome, interstellar transmission
of genotype gentian violet genus geoboard geode geodesic geodesy geodesy satellites geodetic precession Geographos (minor planet 1620) geography GEOGRAPHY Geo - IK geologic time geology GEOLOGY AND PLANETARY SCIENCE geomagnetic field geomagnetic storm geometric mean geometric sequence geometry GEOMETRY geometry puzzles geophysics GEOS (Geodetic Earth Orbiting Satellite) Geosat geostationary orbit geosynchronous orbit geosynchronous / geostationary transfer orbit (GTO) geosyncline Geotail (satellite) geotropism germ germ cells Germain, Sophie (1776 — 1831) German Rocket Society germanium germination Gesner, Konrad von (1516 — 1565) gestation Get Off the Earth puzzle Gettier problem geyser g - force GFO (Geosat Follow - On) GFZ - 1 (GeoForschungsZentrum) ghost crater Ghost Head Nebula (NGC 2080) ghost
image Ghost
of Jupiter (NGC 3242) Giacconi, Riccardo (1931 ---RRB- Giacobini - Zinner, Comet (Comet 21P /) Giaever, Ivar (1929 ---RRB- giant branch Giant Magellan Telescope giant molecular cloud giant planet giant star Giant's Causeway Giauque, William Francis (1895 — 1982) gibberellins Gibbs, Josiah Willard (1839 — 1903) Gibbs free energy Gibson, Edward G. (1936 ---RRB- Gilbert, William (1544 — 1603) gilbert (unit) Gilbreath's conjecture gilding gill gill (unit) Gilruth, Robert R. (1913 — 2000) gilsonite gimbal Ginga ginkgo Giotto (ESA Halley probe) GIRD (Gruppa Isutcheniya Reaktivnovo Dvisheniya) girder glacial drift glacial groove glacier gland Glaser, Donald Arthur (1926 — 2013) Glashow, Sheldon (1932 ---RRB- glass GLAST (Gamma - ray Large Area Space Telescope) Glauber, Johann Rudolf (1607 — 1670) glaucoma glauconite Glenn, John Herschel, Jr. (1921 ---RRB- Glenn Research Center Glennan, T (homas) Keith (1905 — 1995) glenoid cavity glia glial cell glider Gliese 229B Gliese 581 Gliese 67 (HD 10307, HIP 7918) Gliese 710 (HD 168442, HIP 89825) Gliese 86 Gliese 876 Gliese Catalogue glioma glissette glitch Global Astrometric Interferometer for Astrophysics (GAIA) Global Oscillation Network Group (GONG) Globalstar globe Globigerina globular
cluster globular proteins globule globulin globus pallidus GLOMR (Global Low Orbiting Message Relay) GLONASS (Global Navigation Satellite System) glossopharyngeal nerve Gloster E. 28/39 glottis glow - worm glucagon glucocorticoid glucose glucoside gluon Glushko, Valentin Petrovitch (1908 — 1989) glutamic acid glutamine gluten gluteus maximus glycerol glycine glycogen glycol glycolysis glycoprotein glycosidic bond glycosuria glyoxysome GMS (Geosynchronous Meteorological Satellite) GMT (Greenwich Mean Time) Gnathostomata gneiss Go Go, No - go goblet cell GOCE (Gravity field and steady - state Ocean Circulation Explorer) God Goddard, Robert Hutchings (1882 — 1945) Goddard Institute for Space Studies Goddard Space Flight Center Gödel, Kurt (1906 — 1978) Gödel universe Godwin, Francis (1562 — 1633) GOES (Geostationary Operational Environmental Satellite) goethite goiter gold Gold, Thomas (1920 — 2004) Goldbach conjecture golden ratio (phi) Goldin, Daniel Saul (1940 ---RRB- gold - leaf electroscope Goldstone Tracking Facility Golgi, Camillo (1844 — 1926) Golgi apparatus Golomb, Solomon W. (1932 — 2016) golygon GOMS (Geostationary Operational Meteorological Satellite) gonad gonadotrophin - releasing hormone gonadotrophins Gondwanaland Gonets goniatite goniometer gonorrhea Goodricke, John (1764 — 1786) googol Gordian Knot Gordon, Richard Francis, Jr. (1929 — 2017) Gore, John Ellard (1845 — 1910) gorge gorilla Gorizont Gott loop Goudsmit, Samuel Abraham (1902 — 1978) Gould, Benjamin Apthorp (1824 — 1896) Gould, Stephen Jay (1941 — 2002) Gould Belt gout governor GPS (Global Positioning System) Graaf, Regnier de (1641 — 1673) Graafian follicle GRAB graben GRACE (Gravity Recovery and Climate Experiment) graceful graph gradient Graham, Ronald (1935 ---RRB- Graham, Thomas (1805 — 1869) Graham's law of diffusion Graham's number GRAIL (Gravity Recovery and Interior Laboratory) grain (cereal) grain (unit) gram gram - atom Gramme, Zénobe Théophile (1826 — 1901) gramophone Gram's stain Gran Telescopio Canarias (GTC) Granat Grand Tour grand unified theory (GUT) Grandfather Paradox Granit, Ragnar Arthur (1900 — 1991) granite granulation granule granulocyte graph graph theory graphene graphite GRAPHS AND GRAPH THEORY graptolite grass grassland gravel graveyard orbit gravimeter gravimetric analysis Gravitational Biology Facility gravitational collapse gravitational constant (G) gravitational instability gravitational lens gravitational life gravitational lock gravitational microlensing GRAVITATIONAL PHYSICS gravitational slingshot effect gravitational waves graviton gravity gravity gradient gravity gradient stabilization Gravity Probe A Gravity Probe B gravity - assist gray (Gy) gray goo gray matter grazing - incidence telescope Great Annihilator Great Attractor great circle Great Comets Great Hercules Cluster (M13, NGC 6205) Great Monad Great Observatories Great Red Spot Great Rift (in Milky Way) Great Rift Valley Great Square of Pegasus Great Wall greater omentum greatest elongation Green, George (1793 — 1841) Green, Nathaniel E. Green, Thomas Hill (1836 — 1882) green algae Green Bank Green Bank conference (1961) Green Bank Telescope green flash greenhouse effect greenhouse gases Green's theorem Greg, Percy (1836 — 1889) Gregorian calendar Grelling's paradox Griffith, George (1857 — 1906) Griffith Observatory Grignard, François Auguste Victor (1871 — 1935) Grignard reagent grike Grimaldi, Francesco Maria (1618 — 1663) Grissom, Virgil (1926 — 1967) grit gritstone Groom Lake Groombridge 34 Groombridge Catalogue gross ground, electrical ground state ground - track group group theory GROUPS AND GROUP THEORY growing season growth growth hormone growth hormone - releasing hormone growth plate Grudge, Project Gruithuisen, Franz von Paula (1774 — 1852) Grus (constellation) Grus Quartet (NGC 7552, NGC 7582, NGC 7590, and NGC 7599) GSLV (Geosynchronous Satellite Launch Vehicle) g - suit G - type asteroid Guericke, Otto von (1602 — 1686) guanine Guiana Space Centre guidance, inertial Guide Star Catalog (GSC) guided missile guided missiles, postwar development Guillaume, Charles Édouard (1861 — 1938) Gulf Stream (ocean current) Gulfstream (jet plane) Gullstrand, Allvar (1862 — 1930) gum Gum Nebula gun metal gunpowder Gurwin Gusev Crater gut Gutenberg, Johann (c. 1400 — 1468) Guy, Richard Kenneth (1916 ---RRB- guyot Guzman Prize gymnosperm gynecology gynoecium gypsum gyrocompass gyrofrequency gyropilot gyroscope gyrostabilizer Gyulbudagian's Nebula
cluster globular proteins globule globulin globus pallidus GLOMR (Global Low Orbiting Message Relay) GLONASS (Global Navigation Satellite System) glossopharyngeal nerve Gloster E. 28/39 glottis glow - worm glucagon glucocorticoid glucose glucoside gluon Glushko, Valentin Petrovitch (1908 — 1989) glutamic acid glutamine gluten gluteus maximus glycerol glycine glycogen glycol glycolysis glycoprotein glycosidic bond glycosuria glyoxysome GMS (Geosynchronous Meteorological Satellite) GMT (Greenwich Mean Time) Gnathostomata gneiss Go Go, No - go goblet cell GOCE (Gravity field and steady - state Ocean Circulation Explorer) God Goddard, Robert Hutchings (1882 — 1945) Goddard Institute for Space Studies Goddard Space Flight Center Gödel, Kurt (1906 — 1978) Gödel universe Godwin, Francis (1562 — 1633) GOES (Geostationary Operational Environmental Satellite) goethite goiter gold Gold, Thomas (1920 — 2004) Goldbach conjecture golden ratio (phi) Goldin, Daniel Saul (1940 ---RRB- gold - leaf electroscope Goldstone Tracking Facility Golgi, Camillo (1844 — 1926) Golgi apparatus Golomb, Solomon W. (1932 — 2016) golygon GOMS (Geostationary Operational Meteorological Satellite) gonad gonadotrophin - releasing hormone gonadotrophins Gondwanaland Gonets goniatite goniometer gonorrhea Goodricke, John (1764 — 1786) googol Gordian Knot Gordon, Richard Francis, Jr. (1929 — 2017) Gore, John Ellard (1845 — 1910) gorge gorilla Gorizont Gott loop Goudsmit, Samuel Abraham (1902 — 1978) Gould, Benjamin Apthorp (1824 — 1896) Gould, Stephen Jay (1941 — 2002) Gould Belt gout governor GPS (Global Positioning System) Graaf, Regnier de (1641 — 1673) Graafian follicle GRAB graben GRACE (Gravity Recovery and Climate Experiment) graceful graph gradient Graham, Ronald (1935 ---RRB- Graham, Thomas (1805 — 1869) Graham's law
of diffusion Graham's number GRAIL (Gravity Recovery and Interior Laboratory) grain (cereal) grain (unit) gram gram - atom Gramme, Zénobe Théophile (1826 — 1901) gramophone Gram's stain Gran Telescopio Canarias (GTC) Granat Grand Tour grand unified theory (GUT) Grandfather Paradox Granit, Ragnar Arthur (1900 — 1991) granite granulation granule granulocyte graph graph theory graphene graphite GRAPHS AND GRAPH THEORY graptolite grass grassland gravel graveyard orbit gravimeter gravimetric analysis Gravitational Biology Facility gravitational collapse gravitational constant (G) gravitational instability gravitational lens gravitational life gravitational lock gravitational microlensing GRAVITATIONAL PHYSICS gravitational slingshot effect gravitational waves graviton gravity gravity gradient gravity gradient stabilization Gravity Probe A Gravity Probe B gravity - assist gray (Gy) gray goo gray matter grazing - incidence telescope Great Annihilator Great Attractor great circle Great Comets Great Hercules
Cluster (M13, NGC 6205) Great Monad Great Observatories Great Red Spot Great Rift (in Milky Way) Great Rift Valley Great Square of Pegasus Great Wall greater omentum greatest elongation Green, George (1793 — 1841) Green, Nathaniel E. Green, Thomas Hill (1836 — 1882) green algae Green Bank Green Bank conference (1961) Green Bank Telescope green flash greenhouse effect greenhouse gases Green's theorem Greg, Percy (1836 — 1889) Gregorian calendar Grelling's paradox Griffith, George (1857 — 1906) Griffith Observatory Grignard, François Auguste Victor (1871 — 1935) Grignard reagent grike Grimaldi, Francesco Maria (1618 — 1663) Grissom, Virgil (1926 — 1967) grit gritstone Groom Lake Groombridge 34 Groombridge Catalogue gross ground, electrical ground state ground - track group group theory GROUPS AND GROUP THEORY growing season growth growth hormone growth hormone - releasing hormone growth plate Grudge, Project Gruithuisen, Franz von Paula (1774 — 1852) Grus (constellation) Grus Quartet (NGC 7552, NGC 7582, NGC 7590, and NGC 7599) GSLV (Geosynchronous Satellite Launch Vehicle) g - suit G - type asteroid Guericke, Otto von (1602 — 1686) guanine Guiana Space Centre guidance, inertial Guide Star Catalog (GSC) guided missile guided missiles, postwar development Guillaume, Charles Édouard (1861 — 1938) Gulf Stream (ocean current) Gulfstream (jet plane) Gullstrand, Allvar (1862 — 1930) gum Gum Nebula gun metal gunpowder Gurwin Gusev Crater gut Gutenberg, Johann (c. 1400 — 1468) Guy, Richard Kenneth (1916 ---RRB- guyot Guzman Prize gymnosperm gynecology gynoecium gypsum gyrocompass gyrofrequency gyropilot gyroscope gyrostabilizer Gyulbudagian's Nebula
Cluster (M13, NGC 6205) Great Monad Great Observatories Great Red Spot Great Rift (in Milky Way) Great Rift Valley Great Square
of Pegasus Great Wall greater omentum greatest elongation Green, George (1793 — 1841) Green, Nathaniel E. Green, Thomas Hill (1836 — 1882) green algae Green Bank Green Bank conference (1961) Green Bank Telescope green flash greenhouse effect greenhouse gases Green's theorem Greg, Percy (1836 — 1889) Gregorian calendar Grelling's paradox Griffith, George (1857 — 1906) Griffith Observatory Grignard, François Auguste Victor (1871 — 1935) Grignard reagent grike Grimaldi, Francesco Maria (1618 — 1663) Grissom, Virgil (1926 — 1967) grit gritstone Groom Lake Groombridge 34 Groombridge Catalogue gross ground, electrical ground state ground - track group group theory GROUPS AND GROUP THEORY growing season growth growth hormone growth hormone - releasing hormone growth plate Grudge, Project Gruithuisen, Franz von Paula (1774 — 1852) Grus (constellation) Grus Quartet (NGC 7552, NGC 7582, NGC 7590, and NGC 7599) GSLV (Geosynchronous Satellite Launch Vehicle) g - suit G - type asteroid Guericke, Otto von (1602 — 1686) guanine Guiana Space Centre guidance, inertial Guide Star Catalog (GSC) guided missile guided missiles, postwar development Guillaume, Charles Édouard (1861 — 1938) Gulf Stream (ocean current) Gulfstream (jet plane) Gullstrand, Allvar (1862 — 1930) gum Gum Nebula gun metal gunpowder Gurwin Gusev Crater gut Gutenberg, Johann (c. 1400 — 1468) Guy, Richard Kenneth (1916 ---RRB- guyot Guzman Prize gymnosperm gynecology gynoecium gypsum gyrocompass gyrofrequency gyropilot gyroscope gyrostabilizer Gyulbudagian's Nebula (HH215)
Oliver Tunnah, a regular user
of the FTs took this great
image of the distant
galaxy cluster Abell 2065 during one session on FTS.
A new NASA Hubble Space Telescope
image shows globular
cluster NGC 1846, a spherical collection
of hundreds
of thousands
of stars in the outer halo
of the Large Magellanic Cloud, a neighboring dwarf
galaxy of the Milky Way that can be seen from the southern hemisphere.
If the lensing effect is strong, then multiple
images of a distant
galaxy will be produced and the separation angle between the multiple
images gives us the mass
of the lensing object (in this case, the closer
galaxy or
galaxy cluster).
While making a routine search
of the GLASS team's data, Kelly spotted the four
images of the exploding star on Nov. 11, 2014, in the
galaxy cluster MACS J1149.6 +2223, located more than 5 billion light - years away.