Sentences with phrase «astronomers knew»

When the plume in Jupiter's 8G gravity was as large as the entire Earth, geologists and astronomers knew our safe little world wasn't safe at all, and that catastrophe could rain from the sky at any moment.

When interstellar asteroid «Oumuamua was seen speeding out of our solar system last October, astronomers knew it was something special.

Astronomers knew that «sun - like» stars — those with a mass up to about eight times that of the sun — puff up towards the end of their lives into red giants.

But if astronomers knew the rate at which hydronium converts to water, then they could estimate the amount of water in the clouds by measuring hydronium, which can be detected by radio telescopes.

Current telescopes could barely detect light reflected from a hole at the outskirts of our solar system, even if astronomers knew where to look.

A hundred years ago, astronomers knew of just one galaxy: our own.

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 them.

Astronomers knew the initial solar system was full of tiny rocks, and somehow they grew into planets, asteroids and everything else.

Astronomers knew the earth was not the center of the solar system.

Astronomers know now that the universe will continue to expand and separate until it eventually loses its ability to regenerate stars, thus extinguishing all light, heat, and physical life.

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.

Today, astronomers know that virtually every galaxy harbors a giant black hole at its center, shaping the formation of millions of stars and even neighboring galaxies with its immense gravitational influence.

The planet appears to be too hot and violent to support anything like life as we know it, but now that astronomers know how to study the atmosphere of one exoplanet, they are ready to try extending the technique to other, potentially more inviting worlds.

Nor do astronomers know whether all globular clusters house black holes today, or whether many lost theirs when gravitational jostling at their crowded hearts flung the holes into space.

Now, however, astronomers know where to look to reliably see at least one: a patch of sky about one tenth the size of the full moon in the direction of the constellation Auriga.

No Middle Ground Astronomers know of the giant black holes at galactic cores and the comparatively lightweight versions that form when stars collapse.

Astronomers know the X-ray emission in these flares arises very close to the black hole.

Astronomers know very little for certain about Ceres, but based on indirect evidence, they speculate that it is a world of clay and ice, and possibly even has a subsurface ocean of liquid water, preserved from the very creation of the solar system.

Most of what astronomers know about Ceres comes from indirect measurements of its mass and density, based on the way it subtly tugs on Mars and vice versa.

Astronomers know that while large stars can end their lives as violently cataclysmic supernovae, smaller stars end up as planetary nebulae — colourful, glowing clouds of dust and gas.

Now astronomers know that Circinus X-1, one of the Milky Way's most bizarre objects, is 30,700 light - years from Earth.

The trouble is, the shells seen in the Hubble images are from 200 to 1,000 years apart, and astronomers know of no process that could conceivably cause a dying star to shoot off a layer of gas every 200 to 1,000 years.

Cosmologists and astronomers know that only 5 % of it consists of ordinary matter of the sort found in stars and planets.

Visible light can't pierce Venus's thick shroud of clouds, so most of what astronomers know about the planet's surface comes from observations in radar and other wavelengths.

Astronomers know it's there, but physicists have no idea what it is.

Astronomers know that black holes ranging from about 10 times to 100 times the mass of our sun are the remnants of dying stars, and that supermassive black holes, more than a million times the mass of the sun, inhabit the centers of most galaxies.

Astronomers know that the first galaxies during their forming stages were chemically simple — primarily made up of hydrogen and helium, elements made in the Big Bang during the first three minutes of the universe's existence.

That measurement was surprising because it doesn't match what astronomers know about other Neptune - mass exoplanets.

«Astronomers know star formation has just completed in this region, called Upper Scorpius, because roughly a quarter of the stars still have bright protoplanetary disks,» David said.

Because of this relationship, astronomers know that a dip in a star's X-ray emission would mirror a decline in its magnetic activity, as the two are intrinsically linked.

Since other phenomena, such as a plague of star - spots, or a close binary system of two orbiting stars, can also cause a star's light to appear to dip, how do astronomers know that they have really detected a transiting planet?

Astronomers know it exists only because it interacts with our slice of the ordinary universe through gravity.

Although dark matter is invisible to telescopes, astronomers know it is there from the gravitational influence it exerts over galaxies.

Through indirect measurements, astronomers know that it's out there, but they just can't «see» it.

Today, astronomers know that galaxies and nebulae are unique objects with different characteristics.

«Many amateur astronomers know that stars twinkle, but planets don't,» Frail explained.

This includes the odd ad hominem or two, like the sneering «What does an astronomer know about the climate?»

Not exact matches

'' [A] stronomers don't know exactly how planets are formed,» Emma Yu, an astronomer at the University of Texas in Austin, writes at «Ask An Astronomastronomer at the University of Texas in Austin, writes at «Ask An AstronomerAstronomer».

Astronomers still don't know what causes these stellar tantrums, but Eta Carinae continues to spew out powerful winds of gas and dust at speeds of roughly 6.2 million mph (10 million kph).

Early in Einstein's career, astronomers didn't know about other galaxies.

In fact, one astronomer basically said that the words «dark matter» and dark energy» means «we really don't know what they are.»

(iii) you are a complete blowhard who has never studied one subject of university level biology, never been on an archaeological dig, never studied a thing about paleontology, geology, astronomy, linguistics or archaeology, but feel perfectly sure that you know more than the best biologists, archaeologists, paleontologists, doctors, astronomers botanists and linguists in the World because your mommy and daddy taught you some comforting stories from Bronze Age Palestine as a child.

So the astronomer Laplace said, if he could know the position and momentum of every particle in the universe he could predict the future of the universe completely.

(iii) you are a complete blowhard who has never studied one subject of university level biology, never been on an archeological dig, never studied a thing about paleontology, geology, astronomy, linguistics or archeology, but feel perfectly sure that you know more than the best biologists, archeologists, paleontologists, doctors, astronomers botanists and linguists in the World because your mommy and daddy taught you some comforting stories from Bronze Age Palestine as a child.

Barring a few great thinkers / philosophers / astronomers who have walked the earth, 99.9999... % of the human race is no better than any other animal species.

I know of no physicist or astronomer who is all that interested in astrology.

Astronomer David Sobral and his colleagues named it CR7, which stands for COSMOS Redshift 7 but is also a nod to the Portuguese football star Cristiano Ronaldo, who is known to fans as CR7.

Astronomers point ALMA at Titan to calibrate the telescope because the moon has known brightness levels, says Palmer, who also works at NASA's Goddard Space Flight Center in Greenbelt, Md..

He notes that astronomers didn't spot the chemically important molecule H3 + until the 1990s «because we just didn't know where to look.»

That began to change when one of Piazzi's rivals, the astronomer William Herschel, noted that Ceres only appeared as a point of light in his telescope rather than a resolved disk, like the other known planets.