An Asteroid with a Secret Inside When McCord and his colleagues picked apart the geochemistry of the Vesta fragments, starting in the early 1970s, they confirmed a startling implication of Vesta observations: The asteroid couldn't have the simple, uniform structure that
most astronomers of the time expected.
Not exact matches
Of an estimated 100 million television viewers — 10 times the number of people who tuned in for The Voice's season 1 finale — most stay up past the «main event» to watch former secretaries of the U.S. government debate nuclear policy with astronomer Carl Saga
Of an estimated 100 million television viewers — 10 times the number
of people who tuned in for The Voice's season 1 finale — most stay up past the «main event» to watch former secretaries of the U.S. government debate nuclear policy with astronomer Carl Saga
of people who tuned in for The Voice's season 1 finale —
most stay up past the «main event» to watch former secretaries
of the U.S. government debate nuclear policy with astronomer Carl Saga
of the U.S. government debate nuclear policy with
astronomer Carl Sagan.
In short, and not surprisingly, the World's
most gifted evolutionary biologists,
astronomers, cosmologists, geologists, archeologists, paleontologists, historians, modern medical researchers and linguists (and about 2,000 years
of accu.mulated knowledge) are right and a handful
of Iron Age Middle Eastern goat herders were wrong.
Arguably one
of the
most important and influential physicists,
astronomers, inventors and scientists to ever live, Galileo took a non-literal approach to Scriptures that the Catholic Church
of the 1600s interpreted to mean that the Earth was the center
of the universe.
In short, and not surprisingly, the World's
most gifted evolutionary biologists,
astronomers, cosmologists, geologists, archeologists, paleontologists, historians, modern medical researchers and linguists (and about 2,000 years
of acc.umulated knowledge) are right and a handful
of Iron Age Middle Eastern goat herders were wrong.
Astronomers have long felt that this mysterious, luminous train must constitute one
of the
most important structural features
of the Universe.
«
most people still somehow think we humans are the culmination
of the evolutionary tree - and that hardly seems credible to an
astronomer.
Astronomers have been able to determine the surface and atmospheric composition
of only a few exoplanets, so for
most planets the data are incomplete.
While peering through one
of the clusters, Abell 2744,
astronomers recently found a candidate for one
of the
most distant galaxies known, a toddler growing up about 500 million years after the Big Bang.
Astronomers conducting a galactic census
of planets in the Milky Way now suspect
most of the universe's habitable real estate exists on worlds orbiting red dwarf stars, which are smaller but far more numerous than stars like our Sun.
Astronomers have discovered the
most luminous galaxy ever found, shining with the equivalence
of 300 trillion suns from the far side
of the visible universe.
Astronomers have traditionally assumed that
most of the black holes powering the first quasars formed this way, too.
This boatload had gone unnoticed because
astronomers previously assumed luminous traces
of the galaxies in Coma indicated small, insignificant bodies, and not just the
most visible central regions
of otherwise very dim objects — the tips
of galactic icebergs, as it were.
So far,
astronomers have found only a dozen
of the
most distant probes
of Planet Nine's supposed sphere
of influence.
«Massive fails» like this one in a nearby galaxy could explain why
astronomers rarely see supernovae from the
most massive stars, said Christopher Kochanek, professor
of astronomy at The Ohio State University and the Ohio Eminent Scholar in Observational Cosmology.
So with access to these and other facilities, Canadian
astronomers can now work in
most of the subfields
of astronomy, although planetary science is still underrepresented.
Most of the comets that
astronomers study have made previous journeys into the torrid inner reaches
of the solar system, often multiple times, as they orbit the sun.
Furthermore,
astronomers can locate and project the orbits
of most asteroids, but comets are not easy to spot until they get inside Jupiter's orbit, where the sun heats them enough to create a visible tail.
A computer simulation
of two black holes violently merging into one will help direct
astronomers in their search for gravitational waves — one
of the
most fundamental, yet elusive, phenomena in the Universe.
After eight decades,
most of the universe is still missing from view, forcing
astronomers to abandon the notion that seeing is believing.
As the German
astronomer Johann Encke wrote to Le Verrier, «Your name will be forever linked with the
most outstanding conceivable proof
of the validity
of universal gravitation.»
HD 85512b In September European
astronomers announced the discovery
of 50 new planets, including one
of the
most Earthlike ones yet: HD 85512b, a rocky world just 3.6 times as massive as our own and mild enough to have liquid water.
This year,
astronomers found they are also responsible for some
of the
most powerful explosions — short gamma - ray bursts.
Astronomers craving their first image
of a planet beyond our solar system now have fresh targets to explore: newly identified siblings
of Beta Pictoris, the
most famous dust - shrouded star in the sky.
WASHINGTON, D.C. —
Astronomers have for the first time traced gamma rays, the
most energetic form
of light, to galaxies undergoing a frenzy
of star birth.
Some
astronomers are questioning the existence
of what might be the
most Earth - like planet yet found outside the solar system, based on a reexamination
of archival data.
When Chandra becomes fully operational, it will be the
most powerful x-ray observatory available to
astronomers, exceeding the resolving capability
of its predecessor, ROSAT, by as much as 50 times.
The Life
of Super-Earths by Dimitar Sasselov Of the 700 planets astronomers have found so far in distant solar systems, most are places that are extremely hostile to life as we know it: searing - hot gas giants where iron could fall as rain and winds might blow in excess of 1,000 miles per hou
of Super-Earths by Dimitar Sasselov
Of the 700 planets astronomers have found so far in distant solar systems, most are places that are extremely hostile to life as we know it: searing - hot gas giants where iron could fall as rain and winds might blow in excess of 1,000 miles per hou
Of the 700 planets
astronomers have found so far in distant solar systems,
most are places that are extremely hostile to life as we know it: searing - hot gas giants where iron could fall as rain and winds might blow in excess
of 1,000 miles per hou
of 1,000 miles per hour.
1
Astronomers Margaret Turnbull and Jill Tarter
of the Carnegie Institution in Washington, D.C., have compiled a list
of 17,129 nearby stars
most likely to have planets that could support complex life.
Astronomers have gotten the
most detailed look yet at the atmosphere
of a planet outside the solar system.
«Water is one
of the
most ubiquitous molecules there is,» says Greg Laughlin, an
astronomer at the University
of California at Santa Cruz who develops theoretical models
of extrasolar planets.
This high - resolution image
of Jupiter's moon Io was snapped last November 6 by the Galileo spacecraft, and it has given
astronomers their best look at the
most volcanically active object in the solar system since the Voyager flyby in 1979.
In January 2014,
astronomers watched a rare supernova light up and began filling in one
of the
most embarrassing gaps in their understanding
of the universe.
It's a challenging task, but
astronomers have made progress on one front: the study
of dark matter and dark energy, two
of the
most mysterious substances in our cosmos.
After a decade
of searching for planets orbiting stars like our sun,
astronomers had found nothing but giant planets,
most of them gas balls like Jupiter, around other stars.
Astronomers tracked the interplanetary shocks caused by two powerful bursts
of solar wind traveling from the sun to Uranus, then used Hubble to capture their effect on Uranus» auroras — and found themselves observing the
most intense auroras ever seen on the planet.
By utilizing a full spectrum
of colour from ultraviolet to near infared, NASA
astronomers have created the
most colourful deep space images to date.
Most SETI projects tune in to the 1.42 to 1.72 - gigahertz range, reasoning that alien
astronomers might expect earthly scientists to be looking there anyway as this is the frequency
of radiation emitted by interstellar hydrogen and hydroxyl clouds.
Astronomers generally agree that enormous black holes lurk at the centre
of most galaxies, and have identified plausible candidates in many galaxies, including the neighbouring dwarf galaxy M32 — and our own Milky Way.
An
astronomer by training but a photographer at heart, Zoltan Levay creates images
of the cosmos with one
of humankind's
most advanced optical instruments: the Hubble Space Telescope.
So far it hasn't identified a source for cosmic neutrinos, but
astronomers believe the project and its successors will soon capture particles from some
of the
most exotic powerhouses in the universe.
Last year British
astronomers identified the
most massive star ever seen: a behemoth weighing 265 times as much as our sun, so huge that it challenges
astronomers» models
of how stars are born.
You won't hear them say it, but some
of the world's
most acclaimed
astronomers have been frustrated for the better part
of two decades.
As useful as Webb might be for studying Proxima b,
most astronomers are far more optimistic about using a coming generation
of ground - based Extremely Large Telescopes (ELTs), behemoths with mirrors up to 40 meters wide, scheduled to debut in the mid-2020s.
«Zwicky began referring to Baade as «the Nazi»... He regarded
most of the other Palomar
astronomers as fools, and Walter Baade as a cretin... He would swear torrentially at night assistants, using scientific terms laced with obscenities... He referred to Baade and the others as spherical bastards — «They are spherical,» he said, «because they are bastards every way I look at them.»
Most astronomers believe that a quasar is a massive black hole at the centre
of a galaxy, greedily sucking in stars and gas, which become so hot that they give off tremendous amounts
of energy.
Ultimately, the
most ambitious gravitational wave observatories
astronomers can presently conceive might someday record the hiss
of waves emitted in the first fractions
of a trillionth
of a second after the big bang.
FRED HOYLE is one
of the
most famous living
astronomers in Britain.
There wasn't any good reason to believe in the reality
of other universes — at least not until near the beginning
of the new millennium, when
astronomers made one
of the
most remarkable discoveries in the history
of science.
Using the
most powerful radio telescope in the world, an international team
of astronomers has set out to look for answers in the star L2 Puppis.