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Mars may still be volcanically active, study finds

A satellite image of a recent explosive volcanic deposit around a fissure of the Cerberus Fossae system on Mars. (Image credit: NASA/JPL/MSSS/The Murray Lab) Evidence of what may be the youngest eruption seen yet on Mars suggests the Red Planet may still be volcanically active, raising the possibility it was recently habitable, a new study […]

The Milky Way is probably full of dead civilizations

Most alien civilizations that have ever inhabited our galaxy have most probably died away. That’s the takeaway of a new study, published to the arXiv database, which used modern astronomy and statistical modeling to map the emergence and death of intelligent life in time and space across the Milky Way. Their findings amount to a […]

An Earth-size planet in the habitable zone? NASA discovery is one special world.

An artist’s depiction of the planet TOI 700 d. An artist’s depiction of the planet TOI 700 d. (Image credit: NASA’s Goddard Space Flight Center/Chris Smith. (USRA)) HONOLULU — When scientists search for alien planets, they get a special thrill when they find one that seems to reflect our own world back to us. TOI […]

Saturn’s moon Titan has a weird organic chemical in its atmosphere

Six images of Saturn’s moon Titan that incorporate 13 years of data gathered by NASA’s Cassini spacecraft. (Image credit: NASA/JPL-Caltech/University of Nantes/University of Arizona) Saturn’s moon Titan just keeps getting weirder — and more tantalizing when it comes to scientists’ hopes for life beyond Earth. Titan is perhaps the most Earth-like place in our solar […]

Water on the moon is more common than we thought, studies reveal

For the first time ever, scientists have identified water on the moon’s sunlit surface. They also found that water is more common on the moon than previously thought, with pockets of ice hiding in shadowy regions of “eternal darkness,” some as small as a penny, new studies reveal. Scientists have been finding signs of water […]

Watch: Black hole kills star by ‘spaghettification’ as telescopes watch

Telescopes have captured the rare light flash from a dying star as it was ripped apart by a supermassive black hole. This rarely seen “tidal disruption event” — which creates spaghettification in stars as they stretch and stretch – is the closest such known event to happen, at only 215 million light-years from Earth. (For […]

Jupiter’s ocean moon Europa probably glows in the dark

This illustration of Jupiter’s moon Europa depicts how the icy surface might glow at night, when the moon is facing away from the Sun. Variations in the glow’s brightness and color could offer information about the composition of ice on Europa’s surface. (Image credit: NASA/JPL-Caltech) According to a new study, the icy Jupiter moon Europa […]

Black holes could become massive particle accelerators

(Photo by ALFRED PASIEKA/SCIENCE PHOTO LIBRARY via Getty Images.) Black holes are powerful engines of pure gravity, capable of pulling on objects so intensely that they can’t possibly escape. When such objects reach the event horizon, they are accelerated to incredible velocities. Some physicists now suggest using the gravitational pull of black holes to create […]

Did NASA detect a hint of life on Venus in 1978 and not realize it?

A NASA illustration shows the Pioneer 13 probes descending toward the clouds of Venus. (Image credit: NASA) If life does exist on Venus, NASA may have first detected it back in 1978. But the finding went unnoticed for 44 years. Life on Venus is still a long shot. But there’s reason to take the idea […]

It’s really there! Kepler space telescope’s 2nd-ever exoplanet candidate finally confirmed.

This artist’s illustration shows the exoplanet KOI-5Ab transiting across the face of a sunlike star, which is part of a triple-star system located 1,800 light-years away in the constellation Cygnus. (Image credit: Caltech/R. Hurt (IPAC)) A recently found exoplanet is a real blast from the past. Astronomers have just confirmed the presence of KOI-5Ab, which […]