Darlene Easterday

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One single theory may have solved three Mars mysteries

We still aren't quite sure how Mars formed; there are many questions about its distinct geology and weird (but lovable) potato moons that don't really make sense. But now, a study in the journal <i>Geophysical Research Letters</i> may have solved some of the enduring mysteries of the red planet.<p>Mars has …

Astronomy

NASA’s Hubble captures stunning photo that will make you feel insignificant

We go about our lives here on planet Earth — doing our jobs, cashing paychecks, and raising families — and most of the time we don’t question just …

Fossil sheds light on bird evolution after asteroid strike

<b>The fossil of a tiny bird that lived 62 million years ago confirms that birds evolved very rapidly after the asteroid strike that wiped out the dinosaurs.</b><p>The sparrow-sized tree-dweller lived ''just a geological blink of an eye" after the mass extinction.<p>Bird fossils from that time period are very …

USA TODAY

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Nasa's Juno space probe to fly over Jupiter's Great Red Spot for first time

Jupiter’s mysterious Great Red Spot will be studied in detail for the first time when Nasa’s Juno spacecraft flies over the huge storm on Monday.<p>The orbiter will soar over the swirling clouds at a height of just 5,600 miles (9,000km) the closest anyone has ever got to the planet’s most famous …

NASA's Planet-Hunting Probe Finds Hundreds of New Alien Worlds

The Kepler Space Telescope has discovered 219 new candidates since NASA's last data unveiling, including 10 near-Earth-size planet candidates.<p>NASA has unveiled the complete set of data from the first four years of the agency's Kepler Space Telescope mission, which stared at a single patch of the …

Telescopes

Astronomers Discover That Our Sun Likely Had an "Evil" Twin That Killed the Dinosaurs

Stellar Doppelganger<p>We have long known that the dinosaurs were killed by a catastrophic comet impact with the Earth’s surface but what if there was …

Astronomy

Cosmic 'Bruise' Could Be Evidence for Multiple Universes

It sounds wild. But the idea that we live in a multiverse — a cosmos where an infinite number of universes exist beside our own — is no longer confined to science fiction. It’s a respectable theory among scientists, so much so that some are on the hunt for proof of a nearby universe.<p>Now, scientists …