planet

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Scientists Find Mysterious Changes in Earth's Spin

Something at Earth's core responsible for changes every 6 years

(Newser) - How fast our planet turns—and, in turn, how long our day is—is not a stagnant thing. In fact, it changes every 5.9 years, according to a new study published in Nature . The Earth spins slightly faster or slower on a regular cycle, adding or subtracting milliseconds to...

Water Vapor Found on Distant Planet

Astronomers take incredibly close look at far-away gas giant

(Newser) - Scientists say they've spotted water vapor and carbon monoxide in the atmosphere of a huge gas planet some 130 light-years from Earth, NBC News reports. That doesn't mean life exists there—the planet, HR 8799c, is way too hot and gassy—but it does highlight our growing ability...

Scientists Spot Smallest Planet Ever Seen

Exoplanet Kepler-37b is the size of our moon

(Newser) - Scientists have discovered the smallest known planet, just a third of the size of the Earth. Mercury, the smallest in our solar system, is two-fifths Earth's size, the AP notes; the new discovery, Kepler-37b, is a far-off exoplanet. "This research shows for the first time that other stellar...

World&#39;s Oldest Trees Dying at Alarming Rate
 World's Oldest Trees 
 Dying at Alarming Rate 
new research
Dec 7, 2012 7:09 AM CST

World's Oldest Trees Dying at Alarming Rate

Research shows 10 times the normal death rate

(Newser) - In what one researcher calls a "very, very disturbing trend," new research finds that the planet's oldest trees have started dying at 10 times the normal rate, a change that could greatly damage the planet's ecosystems and biodiversity. Researchers blame logging, development, drought, and climate change...

'Homeless' Planet Seen Adrift in Deep Space

It's cold, young, and doesn't orbit a star

(Newser) - Astronomers have identified a "homeless" planet for the first time and given it a rather un-catchy label: CFBDSIR2149. This young and very cold planet is drifting about 100 light-years away with a group of roughly 30 stars, but isn't orbiting any of them—which makes its blue light...

Astrophysicist &#39;Finds&#39; Superman&#39;s Planet Krypton
 Astrophysicist 
 'Finds' Superman's 
 Planet Krypton 
in case you missed it
Nov 10, 2012 7:22 AM CST

Astrophysicist 'Finds' Superman's Planet Krypton

Neil deGrasse Tyson gives DC Comics a hand

(Newser) - OK, the planet Krypton still isn't real—but now we know where it would be if it existed. Using data from DC Comics, astrophysicist Neil deGrasse Tyson has found a spot in space for Superman's home planet, the New York Post reports. "One of our staffers reached...

Planet Spotted in Solar System Next-Door

But Earth-sized Alpha Centauri planet is too hot for life

(Newser) - Excited astronomers have spotted an Earth-sized planet as close as it is possible to find one outside our solar system. The rocky planet discovered by a European team circles one of the three stars in the Alpha Centauri system, the sun's nearest neighbor at just 4.4 light years...

Giant Star Caught Devouring Planet

A similar fate awaits Earth, scientists say

(Newser) - Astronomers observing the Perseus constellation have caught a glimpse of the fate that awaits our own planet: digestion inside a giant star. Unusual amounts of lithium were detected inside the elderly red giant BD+48 740, and a surviving planet has shifted to a strange elliptical orbit, leading researchers to conclude...

Venus to Cross Sun for Last Time This Century

 Venus to Cross 
 Sun for Last Time 
 This Century 
in case you missed it
Jun 2, 2012 12:43 PM CDT

Venus to Cross Sun for Last Time This Century

Transit occurs Tuesday; next one in 2117

(Newser) - This Tuesday, Venus will move between the Earth and the sun—and you may want to catch it now, because you probably won't be around when it happens again in 2117. The event will be visible throughout the US shortly before sunset. On the East Coast, you'll want...

New &#39;Water World&#39; Confirmed
 New 'Water World' Confirmed 
Feb 22, 2012 8:07 AM CST

New 'Water World' Confirmed

GJ 1214b water world may yield 'hot ice’ or ‘superfluid water'

(Newser) - A hot and steamy water world 40 light years away has been identified as the first known member of a whole new class of planets. Researchers using the Hubble space telescope have confirmed that planet GJ 1214b, first spotted in 2009 , contains a much higher proportion of water than any...

'Super Earth' Spotted, Might Support Life

GG 667Cc orbits star 22 light years away

(Newser) - A planet in a triple-star system a relatively close 22 light years away is the best candidate yet for supporting life, researchers say. The rocky planet, GJ 667Cc, is around 4.5 times the size of Earth and orbits in the middle of the "Goldilocks zone" where water can...

Space Telescope Spots Earth-Sized Worlds

Kepler discoveries are smallest exoplanets yet found

(Newser) - For the first time, scientists have discovered planets roughly the size of ours outside our solar system. Kepler-20e and Kepler-20f are the smallest exoplanets yet found, Discovery reports. Because they're so close to the star they orbit, they don't appear habitable, but the finding is "next major...

&#39;Large Regions&#39; of Mars Are Habitable

 'Large Regions' 
 of Mars Are 
 Habitable 
study says
Dec 12, 2011 7:45 AM CST

'Large Regions' of Mars Are Habitable

But no sign of aliens, spaceships: researchers

(Newser) - More fascinating news about the potential for life on Mars . Some 3% of Mars' volume is capable of sustaining life, Australian scientists have found—more than the 1% of Earth that contains living things. Researchers based their findings on a comparison between the two planets' temperature and pressure attributes, AFP...

NASA Spots Habitable Earth-Like Planet

Kepler-22b averages 72 degrees and may have oceans

(Newser) - Finally, an Earth-like planet where the weather is nice enough for an occasional visit. Only, it's 600 light-years away. Today NASA announced the existence of Kepler-22b, the first-ever planet discovered in the "habitable zone" of a sun-like star—where temperatures are placid enough to allow for water, ScienceNOW...

Small, Heavy, and Shiny— Planetoid Surprises Astronomers

Distant Eris may be more like Mercury than Pluto

(Newser) - It's been six years since distant Eris was discovered, a small planetoid that led to Pluto losing its planetary status. But since it lies three times further from the sun than Pluto, Eris was very difficult to observe and little was known about it—until now. Last year Eris...

Probe Unlocks Mercury's Secrets

Messenger data surprising scientists

(Newser) - Mercury is anything but the boring "burnt-out cinder" scientists once believed it was, say researchers analyzing data from NASA's Messenger orbiter. The spacecraft has now spent 88 days—one Mercurian year—circling the planet, and has sent back about 20,000 new pictures that strongly suggest that ice...

NASA Snaps First Shots of Mercury From Orbit

Future photos to reveal planet's unseen regions

(Newser) - A NASA spacecraft has captured the first photo of Mercury taken from orbit. The first of yesterday’s 363 images, shown at left, show the planet’s south pole. The gray surface is covered with craters, including a 53-mile-wide one known as Debussy. Other photos from the $464 million Messenger...

Kepler Results Boost Chances of Finding Alien Life

For every two suns, an Earth-like planet

(Newser) - Exciting news for alien enthusiasts: The discovery by NASA scientists of a vast trove of Earth-like planets orbiting distant suns boosts our chances of finding extraterrestrial life. Findings from the Kepler telescope revealed that for every two stars in the universe, one has an Earth-like "candidate planet" orbiting it,...

New Planet Sought at Edge of Solar System

Planet Tyche explains change in path of comets: researchers

(Newser) - A huge and previously undetected planet lies at the outer edge of the solar system, believe two University of Louisiana astrophysicists. The planet Tyche, a gas giant four times the size of Jupiter, likely lies in the outer Oort cloud—the most remote part of the solar system—and almost...

NASA Finds Smallest Planet Outside Our Solar System

But Kepler-10b is too hot for human habitation

(Newser) - The Kepler space telescope has discovered a rocky planet that’s just 1.4 times the size of Earth orbiting a distant star—making it the smallest planet NASA has ever discovered outside of our solar system, and the only rocky one, NASA announced today. The bad news: The planet,...

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