Sentences with phrase «by astronomers for»

This principle had been used for a long time by astronomers for design of optical telescopes, to avoid chromatic aberration.

This age, however, differs significantly from the age estimated by another method which has been used by astronomers for decades.

The galaxy NGC4151 is dubbed the «Eye of Sauron» by astronomers for the similarity to its namesake in the film trilogy The Lord of the Rings.

Starting in Marrakech, explore the UNESCO - listed kasbah of Ait Benhaddou and visit the Hollywood of North Africa at Ouarzazate before a camel trek into the Sahara where you'll be joined by an astronomer for the night's spectacle.

Not exact matches

Please, any Christian, honestly answer the following: The completely absurd theory that all 7,000,000,000 human beings are simultaneously being supervised 24 hours a day, every day of their lives by an immortal, invisible being for the purposes of reward or punishment in the «afterlife» comes from the field of: (a) Astronomy; (b) Medicine; (c) Economics; or (d) Christianity You are about 70 % likely to believe the entire Universe began less than 10,000 years ago with only one man, one woman and a talking snake if you are a: (a) historian; (b) geologist; (c) NASA astronomer; or (d) Christian I have convinced myself that gay $ ex is a choice and not genetic, but then have no explanation as to why only gay people have ho.mo $ exual urges.

Newton, for example, told the Astronomer Royal, Flamsteed, to correct some astronomical data because it disagreed with theoretical predictions; several factors, including refraction of light by the atmosphere, were later proposed to justify the corrections.11

Astronomers estimate the age of the universe in two ways: 1) by looking for the oldest stars; and 2) by measuring the rate of expansion of the universe and extrapolating back to the Big Bang; just as crime detectives can trace the origin of a bullet from the holes in a wall.

Although astronomers had accumulated compelling evidence for black holes by observing their surroundings, the LIGO signal is the first real direct proof of their existence.

The completely absurd theory that all 7,000,000,000 human beings are simultaneously being supervised 24 hours a day, every day of their lives by an immortal, invisible being for the purposes of reward or punishment in the «afterlife» comes from the field of: (a) Astronomy; (b) Medicine; (c) Economics; or (d) Christianity You are about 70 % likely to believe the entire Universe began less than 10,000 years ago with only one man, one woman and a talking snake if you are a: (a) historian; (b) geologist; (c) NASA astronomer; or (d) Christian I have convinced myself that gay $ ex is a choice and not genetic, but then have no explanation as to why only gay people have ho.mo $ exual urges.

For centuries, astronomers have peered out into the universe almost exclusively by observing its light.

Found and Lost Galvanized by the discovery of Malin 1, astronomers pored over the previous decades» photographic plates for hints of unnoticed, low - surface - brightness galaxies.

It could be a pulsar wind nebula, driven by the spinning neutron star, or pulsar, which astronomers have been searching for since 1987.

A Giant Galactic Ghost Intrigued by faint blurs on old photographic plates of the Virgo galaxy cluster, a nearby region teeming with galaxies, Oregon's Bothun and colleagues wondered if the apparitions might be smallish galaxies with «low surface brightness» — astronomer - speak for emitting less light per unit area than typical galaxies.

According to Mather and other leading astronomers now working on a report to be released this summer by the Association of Universities for Research in Astronomy (AURA), that quest and others require an even bigger space telescope that would observe, as Hubble does, at optical, ultraviolet and near - infrared wavelengths.

Astronomers, therefore, look for signs of reionization by determining when 21 - centimeter emissions start to turn off — evidence that stars are, simultaneously, starting to turn on.

Such an excess first emerged in the late 1960s and was mapped in 1981 by Glyn Haslam of the Max Planck Institute for Radio Astronomy in Bonn, Germany, but few astronomers thought much of it until now.

A paper by one team that includes astronomers at Penn State, NASA, Los Alamos National Laboratory, and universities in Italy, the United Kingdom, and Germany has been accepted for future publication in the Monthly Notices of the Royal Astronomical Society.

Astronomers have identified over 2,300 new planets in Kepler data by searching for tiny dips in a star's brightness when a planet passes in front of it.

The study was led by astronomers at the University of Manchester's Jodrell Bank Centre for Astrophysics.

By early next spring, astronomer David Kipping hopes to know if the object he's spent his early career searching for is really there.

«With ALMA we can see that there's a direct link between these radio bubbles inflated by the supermassive black hole and the future fuel for galaxy growth,» said Helen Russell, an astronomer with the University of Cambridge, UK, and lead author on a paper appearing in the Astrophysical Journal.

Geneticists and information scientists have built and are building models for the transition of organic molecules to self - replicating living organisms, based on theories of Earth's early development provided by astronomers, geologists, and oceanographers and on the evidence of fossilized microorganisms discovered by paleontologists.

This is great news for astronomers hoping to detect the gravity waves that ought to be produced by these titanic events.

In the past few years, astronomers have solidified the case for cosmic acceleration by studying ever more remote supernovae.

The estimate was presented at an international workshop on Jupiter for professional and amateur astronomers organised by Europlanet 2020 Research Infrastructure at the Observatoire de la Côte d'Azur in Nice, France.

Astronomers hope to analyze the atmospheres of these and other super-Earths by examining the starlight filtering through them, perhaps using the James Webb Space Telescope, scheduled for launch in 2013.

A team led by astronomer Dimitar Sasselov of the Harvard - Smithsonian Center for Astrophysics in Cambridge, Massachusetts, used several large telescopes to scrutinize 59 candidate stars that OGLE singled out for a closer look via subtle dips in their light outputs.

That's what researchers from the Space Telescope Science Institute (STScI) in Baltimore expected to find when they combined data on 458 GRBs discovered by satellites since 2007, a painstaking chore that no one had undertaken before, says Melissa Nysewander, a former STScI astronomer and a co-author of the study submitted for publication to The Astrophysical Journal.

By carefully observing distant supernovae — stellar explosions that for a brief time shine as brightly as 10 billion suns — astronomers found that they were fainter than expected.

In the past, astronomers inferred the existence of exoplanets and their gases by looking for subtle changes in the light...

For astronomers who observe the universe through radio waves generated by stars and galaxies, interference from an Earth - based source can easily drown out any far - off signal.

The team that made this discovery, led by Yale University astronomer Tabetha Boyajian — the star's namesake — suggested a variety of explanations for its strange behavior, including that the star itself was variable, that it was surrounded by clouds of dust or dusty comets, or that planets around it had collided or were still forming.

Despite all these negatives, humidity does have one major upside: It steadies the «seeing,» the astronomer's descriptive and remarkably untechnical term for the blurriness caused by Earth's atmosphere.

Astronomers have been telescopically studying Ceres for decades, using spectrometers to measure how certain wavelengths of light are reflected or absorbed by substances on the surface.

The planet — Proxima b — was discovered by astronomers who spent years looking for signs of the tiny gravitational tug exerted by a planet on its star, after spotting hints of such disruption in 2013.

When astronomers record a single spectrum for the whole galaxy, the iron line is smeared in both directions by this Doppler effect.

Despite their name, MACHOs need not occur only in the galactic halo, so astronomers can search for them by looking for microlensing effects anywhere where there are large numbers of stars.

Now Matthew Holman and Matthew Payne, two astronomers from the Harvard - Smithsonian Center for Astrophysics, have taken the idea a step further by analysing the Cassini data for multiple possible orbits instead of just one.

What looked at first like a sort of upside - down planet has instead revealed a new method for studying binary star systems, discovered by a University of Washington student astronomer.

The new paper attempts to rebut a refined case for MOND recently put forward by Stacy McGaugh, an astronomer at Case Western Reserve University in Cleveland, Ohio.

Cerro Paranal's altitude above sea level is another — the VLT's optical and infrared view of the sky is uninterrupted by clouds and the atmosphere is so thin there is not even enough turbulence to make the stars twinkle, pretty for you and me but an annoying source of error for astronomers.

The Search for Extraterrestrial Radio Emissions from Nearby Developed Intelligent Populations (SERENDIP) has scanned billions of radio sources in the Milky Way by piggybacking receivers on antennas in use by observational astronomers, including Arecibo.

As the most abundant element in the Universe and the raw fuel for creating stars, hydrogen is used by radio astronomers to detect and understand the makeup of other galaxies.

For a long time after gamma - ray bursts were discovered — accidentally, by Defense Department satellites looking for Soviet nuclear detonations in space — astronomers knew next to nothing about thFor a long time after gamma - ray bursts were discovered — accidentally, by Defense Department satellites looking for Soviet nuclear detonations in space — astronomers knew next to nothing about thfor Soviet nuclear detonations in space — astronomers knew next to nothing about them.

So spare a thought for the poor astronomer whose view of the heavens, night after night, may be restricted by light scattered by our polluted atmosphere.

Astronomers detect planets too far away for direct observation by the dimming in light when a world passes in front of, or transits, its host star.

It took three years for astronomers to test this theory by measuring, during an eclipse, how the sun shifted light from a star.

Astronomers using telescopes at seven different locations, including the 1.54 - metre Danish and TRAPPIST telescopes at ESO's La Silla Observatory in Chile [5], were able to watch the star apparently vanish for a few seconds as its light was blocked by Chariklo — an occultation [6].

An international team of astronomers led by Dr. Andrea Kunder of the Leibniz Institute for Astrophysics Potsdam (AIP) in Germany has discovered that the central 2000 light years within the Milky Way Galaxy hosts an ancient population of stars.

Ms. Duong noted that «The Cannon is named for Annie Jump Cannon, a pioneering American astronomer who classified the spectra of around 340,000 stars by eye over several decades a century ago — our code analyses that many stars in far greater detail in less than a day.»