Sentences with phrase «by astronomers as»

Venus transits were recognized by astronomers as early as the 17th century as offering a means to approximate the scale of Earth's solar system.

Prior to the 1960s the asteroids were largely dismissed by astronomers as an irrelevance, and indeed a nuisance.

The star is now commonly referred by some astronomers as HD 97658, as designated in the Henry Draper (1837 - 82) Catalogue with extension (HDE), a massive photographic stellar spectrum survey carried out by Annie Jump Cannon (1863 - 1941) and Edward Charles Pickering (1846 - 1919) from 1911 to 1915 under the sponsorship of a memorial fund created by Henry's wife, Anna Mary Palmer.

Tiny and very faint, this fast moving object (centre) was captured by astronomers as it passed through our Solar system.

Similarly - aged stars moving through space together in a group — described by astronomers as an association — are of great interest to researchers, because they are considered a prime target to hunt for brown dwarfs and free - floating planet - like objects.

Since heavy elements, referred to by astronomers as «metals,» are brewed in stars, subsequent stellar generations become more and more metal - rich.

Tiny and very faint, this fast moving object (centre) was captured by astronomers as it passed through our Solar system.

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.

An astronomer does not «see God» in science by finding some new and rare piece of data that proves God exists as if God were like an alien visiting from another planet, which would be a childish and materialistic understanding of what God is.

English astronomer Fred Hoyle (1915 - 2001) once calculated this as 10 followed by 40, 000 zeroes and further said that this is «the same as the chance of throwing an uninterrupted sequence of 50,000 sixes with unbiased dice!»

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.

A recent online article by Adam Frank - an astronomer from the University of Rochester in New York state - waded into the huge current debate over the «new atheism» espoused with «evangelical fervour» by such advocates as Richard Dawkins, Christopher Hitchens etc..

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.

Normally, a picture like this would show lots of stars as well as dust lit up by those stars, but astronomers used an image taken in visible light to subtract off the stars in the IR image, leaving just the dust behind.

By analyzing the light from molecular clouds, astronomers have observed not just H2O, but 200 different molecules — including H2, carbon dioxide and ammonia — existing either as gases or in ice that coats dust grains.

Several hours later, a team of astronomers known as the ROTSE (Robotic Optical Transient Search Experiment) collaboration, led by Carl Akerlof of the University of Michigan, reported that the visible - light counterpart of the burst was also seen in the images taken with a small, robotic telescope operated by their team, starting only 22 seconds after the burst.

The strongly bent lateral tails offer the astronomers clues to the geometry of the pulsar, which could be compared to either jet contrails soaring into space, or to a bow shock similar to the shockwave created by a bullet as it is shot through the air.

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.

«Few astronomers, especially women, follow the traditional path that we're all taught as students: a Ph.D. followed by one or two postdocs in different places, and then a permanent position,» she says.

Planetary nebulae, which got their name after being misidentified by early astronomers, are formed when an ageing star weighing up to eight times the mass of the sun ejects its outer layers as clouds of luminous gas (see Why stars go out in a blaze of glory).

But compare the image taken in June last year with one taken by amateur astronomer Anthony Wesley on 8 May and you will see that one of them, known as the south equatorial belt, has disappeared.

Venus orbits the Sun, but not exactly on the same plane as the Earth, so it only passes directly between us and the Sun — what astronomers call a transit; think of it as a «mini-eclipse» — every century or so (and then, due to the odd dance of gravity, it happens in pairs separated by 8 years).

As instruments improved, astronomers detected smaller wobbles caused by smaller planets, until in 2004 a team using the Hobby - Eberly Telescope was arguably the first to find a super-Earth, 55 Cancri e. Others were revealed when their gravity briefly magnified the light of a distant star, a process known as gravitational lensinAs instruments improved, astronomers detected smaller wobbles caused by smaller planets, until in 2004 a team using the Hobby - Eberly Telescope was arguably the first to find a super-Earth, 55 Cancri e. Others were revealed when their gravity briefly magnified the light of a distant star, a process known as gravitational lensinas gravitational lensing.

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 Intergalactic Travel Bureau describes itself as an «interactive science - theater experience» and is staffed by professional actors and astronomers.

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 hour.

And by analyzing the light as it passes through clouds of gas and on its way to Earth, astronomers will glean the compositions of the earliest galaxies, Lamb adds.

Meteors impacting Jupiter's upper atmosphere can create spectacular fireballs, such as the one observed by amateur astronomers Gerrit Kernbauer and John McKeon on 17th March 2016.

A team led by astronomer William Romanishin of the University of Oklahoma, Norman, considered whether surface markings, such as a bright hemisphere and a dark one, could explain the data.

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.

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.

Now, astronomers have overcome that problem by tracking bright spots of radio emission from the Triangulum Galaxy — also known as M33 — which the new study locates at 2.4 million light years from Earth.

Visible light (second inset) shows a vast, elliptical grouping of stars bisected by a dark lane of dust, which astronomers interpret as the remains of a spiral galaxy that collided with a larger elliptical galaxy.

When Vassar College promoted a lecture by billing Vera Rubin, one of the pioneering dark matter astronomers of the 1970s, as the «discoverer» of dark matter, Barbarina sent me an e-mail: «I will certainly call my attorney on Monday, and have him write a letter to Ms. Rubin, stating that any and all potential public claims to my father's work will be equally publicly challenged by me.»

Once confirmed, a transit allows astronomers to confidently measure a planet's orbital period — its year — as well as to estimate its size, by comparing the depth of its shadow with the estimated dimensions and luminosity of its star.

Thanks to years of observations by the versatile probe, astronomers now know Saturn as intimately as macaroni knows cheese.

Their paths shift slightly from one orbit to the next — a phenomenon known as precession — but when astronomers use general relativity to predict the amount of this shift, their answers are off by a factor of four.

Guyon adds that the system will help astronomers to study the skies more efficiently, by bringing large objects, such as nearby galaxies, into focus all at once, and by allowing more distant objects to be studied in a single snapshot.

By cross-correlating the arrival times of all the different pulses to nanosecond precision across decades, astronomers hope to detect gravitational waves with wavelengths measured in light - months and light - years as their passing periodic ripples distort spacetime around Earth.

Additionally, the thousands of worlds discovered by NASA's planet - hunting Kepler mission strongly suggest that «there should be as many small planets like the Earth as there are stars,» Morse explains, meaning that to see one astronomers should not need to build a gargantuan telescope that could peer clear across the galaxy.

Then as now, astronomers estimated the distances to galaxies by studying Cepheid variables, an unusual class of stars whose brightness rises and falls predictably: The longer the period of variation, the more luminous the star.

Astronomers exploit it to combine light or radio waves collected by widely separated telescopes so that they act as a single huge instrument, as large as the distance between the two of them.

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.

Using data gathered by an infrared camera during a survey of such stars, astronomers have found that the brightness of a brown dwarf — dubbed 2MASS 2139, which lies about 47 light - years from Earth — varied as much as 30 % in less than 8 hours.

Astronomers have produced a highly detailed image of the Crab Nebula, by combining data from telescopes spanning nearly the entire breadth of the electromagnetic spectrum, from radio waves seen by the Karl G. Jansky Very Large Array (VLA) to the powerful X-ray glow as seen by the orbiting Chandra X-ray Observatory.

By seeing which wavelengths are absorbed as the starlight passes through the planet's atmosphere, astronomers could determine whether the atmosphere contains water, carbon monoxide, methane, and carbon dioxide.

Described by a spokesperson from NASA's Astrobiology Institute as «a revolution that will require its own revolution,» astrobiology draws on the expertise of astronomers and biologists, physicists, chemists, and geologists to understand the development of life in the universe.

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].

For decades Pluto, later joined by its moon Charon, had a wide swath to itself on astronomers» plots of the solar system — no other bodies were known to dwell beyond Neptune in the long - hypothesized debris field known as the Kuiper Belt.

Using data captured by ALMA in Chile and from the ROSINA instrument on ESA's Rosetta mission, a team of astronomers has found faint traces of the chemical compound [Freon - 40]--(CH3Cl), also known as methyl chloride and chloromethane, around both the infant star system IRAS 16293 - 2422, about 400 light - years away, and the famous comet 67P / Churyumov - Gerasimenko (67P / C - G) in our own Solar System.