Afterglow of Colliding Neutron Stars Would Outshine Our Sun By Rafi Letzter A new, hours-long Hubble study of the collision site revealed never-before-seen details of the neutron-star merger
This Comet Might Be from Interstellar Space. Here's How We Could Find Out. By Meghan Bartels At first, it was just another bright, fuzzy speck in the sky. But it may turn out to be something much more exciting: the second known object to hurtle through our solar system after leaving another.
Einstein's Gravitational Lenses Could Clear Up Roiling Debate on Expanding Cosmos By Charles Q. Choi Warps in the fabric of space-time can act like magnifying glasses, and that may help solve a cosmic mystery about the rate of the universe's expansion, a new study found.
There's a Lost Continent Hiding Beneath Europe By Yasemin Saplakoglu The lost continent "Greater Adria" existed hundreds of millions of years ago after it broke off from Gondwana.
‘Blue Stragglers’ in Space May Mask True Age of Star Clusters in Hubble Views By Elizabeth Howell By spying on star clusters in a nearby galaxy, the Hubble Space Telescope has shown that star clusters aren't always as old as they appear.
Saturn and Its Rings Look Truly Spectacular in This Hubble Telescope Portrait By Tariq Malik NASA and the European Space Agency unveiled the new Saturn portrait by the Hubble Space Telescope today (Sept. 12), and it is absolutely jaw-dropping.
A Visit to Watery Super-Earth Alien Planet K2-18 b Would Be Super-Strange By Mike Wall The alien planet K2-18 b would be a truly exotic vacation destination.
Jupiter's Volcanic Moon Io May Not Have a Magma Ocean After All By Nola Taylor Redd Io, the most volcanic body in the solar system, may not boast a magma ocean after all.
Gargantuan 'Bubbles' of Radio Energy Spotted at the Center of Our Galaxy. How'd They Get There? By Brandon Specktor Two huge bubbles of radio energy swirling out of the Milky Way's middle could be evidence of an ancient cosmic explosion — or maybe the start of a new one.
NASA's WFIRST Space Telescope, a Refurbished Spysat Eye, Passes Early Review By Elizabeth Howell NASA's repurposed spy telescope is ready for the next stage of development.
Future Moonwalkers Need Geology Training, Apollo 17's Harrison Schmitt Says By Mike Wall The only geologist ever to set foot on the moon thinks future lunar explorers should be a little more like him.
Water Vapor Detected in Atmosphere of an Alien World Nearly Twice the Size of Earth By Chelsea Gohd Scientists have detected water vapor in the atmosphere of exoplanet K2-18 b.
The Water Vapor Find on 'Habitable' Exoplanet K2-18 b Is Exciting — But It's No Earth Twin By Mike Wall Astronomers are finding more and more alien worlds that may be capable of supporting Earth-like life, but none of them so far are carbon copies of our home world.
Discovery! Water Vapor — and Likely Clouds, Rain, Too — Found on Strange Alien Planet By Chelsea Gohd In a major first, scientists have detected water vapor and possibly even liquid water clouds on a strange exoplanet that lies in the habitable zone of its host star about 110 light-years from Earth.
The Asteroid Impact That Doomed the Dinosaurs Also Spawned a Mega-Tsunami By Elizabeth Howell The dinosaur-killing asteroid that hit the Earth around 66 million years ago probably generated a huge tsunami, according to new research.
Long After Historic Flybys, NASA's New Horizons Is Still Pioneering Science in the Kuiper Belt By Meghan Bartels New Horizons made an epic flyby of a Kuiper Belt object to ring in the New Year — but scientists need brand-new observations to truly understand that data.
Right Again, Einstein! Wobbling Pulsar Confirms General Relativity By Tim Childers A pulsar 25,000 light-years away is wobbling in a weird way. But Einstein's theory of general relativity predicted it more than a century ago.
Dark 'Half-Magnets' from the Sun Could Be Streaming Through Us Every Day By Yasemin Saplakoglu Two theoretical physicists propose a novel idea to find dark matter — and it might actually be testable.
Astronaut-Doctor Serena Auñón-Chancellor Explains How Medical Research on Space Station Helps Patients on Earth By Nola Taylor Redd Astronaut and medical doctor Serena Auñón-Chancellor weighs in on how experiments on the ISS help medical research on Earth.
Star 'Families' Stick Together in the Milky Way, Gaia Maps Reveal By Passant Rabie Even in star clusters, families tend to stick together, and stellar "siblings" don't leave each other's sides for billions of years.
