But at present, the value of W is uncertain by a factor of 10,
with most astronomers putting it somewhere between 0.1 and 1.0.
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 Sagan.
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.
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.
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.»
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.
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.»
A team led by
astronomer Garik Israelian of the European Southern Observatory recently examined nearly 500 stars, including 86
with planets, and found that
most of the planet - bearing stars contained very little lithium, a trait they share
with our sun.
The
astronomers are
most excited by the microlensing events associated
with stars in the LMC, and described the first three of these events in the 10 April issue of Physical Review Letters (vol 74, p 2867).
Yesterday's inauguration of the first element of an international telescope array in Namibia provides
astronomers with the
most sensitive high - energy gamma ray observatory ever — a powerful new tool for studying the
most violent processes in the universe.
In fact, Kepler described
astronomers as «the priests of God, called to interpret the Book of Nature»; Newton acclaimed «this
most beautiful [solar] system» as self - evidently the work of «an intelligent and powerful Being»; Galileo, for all his spats
with Jesuit theologians, hungered for the approval of the Pope; Francis Bacon wanted a new age of Christianity in a new technological Eden; and Einstein famously said «the aspiration towards truth and understanding... springs from the sphere of religion».
Looking at random parts of the sky
with Hubble,
astronomers have found what appears to be the
most distant protocluster ever seen: five galaxies in the process of growth, forming a cosmic collection that may grow into a massive cluster.
Astronomers affiliated
with the Supernova Legacy Survey (SNLS) have discovered two of the brightest and
most distant supernovae ever recorded, 10 billion light - years away and a hundred times more luminous than a normal supernova.
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.
«
Most eccentric planet ever known flashes
astronomers with reflected light: Extrasolar planet swings around its star like it's a comet.»
Most professional
astronomers now work that way too, operating telescopes remotely
with computers and rarely looking through an eyepiece.
The debate has sputtered along intermittently ever since,
with some observers detecting patterns in red shifts but
most astronomers dismissing these as mere coincidences caused by the lack of accurate red shift data.
Most importantly,
astronomers have high - precision measurements of the SMC's rotation curve, which shows how its rotational speed changes
with distance from its center and indicates how much dark matter is present.
As
astronomers report online today in Nature, magnetic fields inside M33's six
most massive giant molecular clouds — large concentrations of dense gas and dust that give birth to stars — line up
with the spiral arms, suggesting the magnetic fields helped create the huge clouds and that they regulate how the clouds fragment to form new stars.
Two teams of
astronomers led by researchers at the University of Cambridge have looked back nearly 13 billion years, when the Universe was less than 10 percent its present age, to determine how quasars — extremely luminous objects powered by supermassive black holes
with the mass of a billion suns — regulate the formation of stars and the build - up of the
most massive galaxies.
Among the
most used by amateur
astronomers are The New Cosmos: Answering Astronomy's Big Questions, Comets: Visitors from Deep Space, The Universe from Your Backyard, Deep - Sky Observing
with Small Telescopes, and Stars and Galaxies.
But it seems they hadn't allowed for local early morning mists, so in the late 1980s
most of the RGO
astronomers headed south
with their optical telescopes for the Canary Islands.
Funding for astronomy is far more limited than that available for cancer research, say, and compared
with most other fields of science, the number of professional
astronomers is astonishingly small (the membership of the American Astronomical Society would just about fit into Radio City Music Hall).
Zapped
with cosmic rays and ultraviolet light, the space between the stars is so hostile that
most astronomers once thought it couldn't possibly harbor something as fragile as molecules.
While Persian
astronomers were the first to catalogue the Andromeda galaxy, only in the last five years that we have studied in exquisite detail the
most distant suburbs of the Andromeda galaxy via the Pan-Andromeda Archaeological Survey (PAndAS), undertaken
with the Canada - France - Hawaii Telescope and measured
with the Keck Observatory, providing our first panoramic view of our closest large companion in the cosmos.
These collaborations bring me to work
with the data collected by professional
astronomers operating the
most powerful telescopes and detectors ever built, like the NASA / ESA's Hubble Space Telescope and the ESO's Very Large Telescope.
Jun. 5, 2017 —
Astronomers at Vanderbilt and Ohio State have discovered a planet like Jupiter zipping around its host star every day, boiling at temperatures hotter than
most stars
with a giant cometary tail.
«The first detection of biosignatures on other worlds may be one of the
most significant scientific discoveries of our lifetime,» says Garreth Ruane, an
astronomer with the California Institute of Technology (Caltech).
Super-bright galaxies powered by black holes have helped
astronomers come up
with the
most accurate distance yet to the iconic Pleiades star cluster.
Working
with fellow Carnegie
astronomer George Preston, Shectman conducted an objective - prism survey for the oldest and
most «metal - poor» stars in the halo of the Milky Way galaxy, and helped to provide the foundation for the study of what is now called near - field cosmology.
ALMA is a revolutionary observatory which, when complete in around 2012, will allow
astronomers to observe the light coming from some of the coldest and
most distant objects in the Universe,
with much better resolution and sensitivity than is presently possible.
The result of a collaboration between ESO and international partners, ALMA will detect millimetre and sub-millimetre radiation, allowing
astronomers to observe some of the coldest and
most distant objects in the Universe
with much better resolution and sensitivity than is presently possible (Mignone & Pierce - Price, 2010).
Pasadena, CA —
With the combined power of NASA's Spitzer and Hubble Space Telescopes, as well as a cosmic magnification effect, a team of
astronomers, including Carnegie's Daniel Kelson, have spotted what could be the
most distant galaxy ever seen.
Lanza has teamed
with Bob Berman, the
most widely read
astronomer in the world, to produce Biocentrism, a revolutionary new view of the universe.
The skies of HAT - P - 7b are decorated
with clouds made of ruby and sapphire, KELT - 9b is hotter than
most stars, and now
astronomers have noticed something strange about a gas giant called WASP - 19b.
Astronomers have detected more than 1,000 confirmed planets and almost 5,000 candidates beyond our solar system,
with most of them found by NASA's Kepler Space Telescope.
While the comet will not collide
with the sun,
most astronomers say the odds are rather long that it will remain intact after its closest pass by the sun.
In an effort to learn more about dark matter,
astronomers observed how galaxy clusters collide
with each other — an event that could hold clues about the mysterious invisible matter that makes up
most of the mass of the universe.
Astronomers suspect that
most hypervelocity stars leave the Milky Way after a close brush
with the supermassive black hole that sits at the center of our galaxy.
The Einstein Cross — The European Space Agency's Faint Object Camera on board NASA's Hubble Space Telescope has provided
astronomers with the
most detailed image ever taken of the gravitational lens G2237 + 0305 — sometimes referred to as the Einstein Cross.
Most times, the traveler was a scientist, either a geologist
with a box of stones, or an
astronomer in quest of a dark night.
I have mentioned before,
with great approval (here and here), the English - born mathematician,
astronomer and physicist Freeman Dyson, who is 94, and has spent
most of his working life at Princeton's Institute of Advanced Study.