What smacked Uranus on its side? Something icy and as massive as Earth, scientists say. By Mike Wall Astronomers have worked out details of the giant impact that knocked Uranus so famously askew.
April's Super Pink Moon is the biggest full moon of 2020. Here's what to expect. By Joe Rao On Tuesday (April 7), the moon will arrive at its closest point to Earth in 2020 a few hours before becoming full. This "supermoon" will be the biggest of the year — but you may not see a difference.
Bright Comet ATLAS could blaze into view this month By Joe Rao Already visible in telescopes and high-power binoculars, the comet may be bright enough to see with the naked eye by the end of April.
This is what Jupiter and Saturn look like from Mars By Meghan Bartels If you've caught a splendid look at Mars, Jupiter and Saturn in the past few weeks, get ready for a major perspective shift.
Pictures from space! Our image of the day By Space.com Staff Saturn's moons Rhea and Janus tango on opposite sides of the planet's famous ring system in this new color-enhanced image from NASA's Cassini orbiter.
Next stop, Enceladus? Scientists make their case for a mission to Saturn's icy moon By Meghan Bartels NASA is headed to Saturn's largest moon, Titan — but some scientists hope to convince the agency to send another mission to Titan's neighbor, Enceladus, to look for signs of life.
Heavy-metal alien planet may be shaped like a football By Charles Q. Choi An exoplanet may be shaped like an American football due to the mighty gravitational forces it experiences close to its star, a new study finds.
Antarctica's Denman Glacier is sinking into the world's deepest canyon By Brandon Specktor Antarctica's Denman Glacier is falling into the world's largest land canyon.
Astronomers spot never-before-seen gravitational wave source from binary white dwarf stars By Chelsea Gohd Astronomers have detected two stellar corpses whirling around each other, and they might be producing gravitational waves.
The top space stories of the week! By Doris Elin Urrutia These are the top space stories this week from Space.com.
Interstellar Comet Borisov is no longer in one piece By Mike Wall But this doesn't mean the object is breaking apart in a meaningful way.
NASA asks its employees for new ideas to combat coronavirus By Hanneke Weitering NASA is calling on its workforce to come up with creative ways that the agency can help fight the coronavirus pandemic.
Constant speed of light: Einstein's theory of special relativity survives a high-energy test By Mike Wall Albert Einstein's theory of special relativity has survived one of its stiffest tests yet.
At Thirty Meter Telescope protest, native Hawaiian elders leave mountain over coronavirus threat By Doris Elin Urrutia Amid the COVID-19 pandemic, native Hawaiians who oppose construction of the Thirty Meter Telescope (TMT) project on Maunakea in Hawaii have reduced their presence on the mountainside.
The sun may kick off a new solar weather cycle this month By Meghan Bartels The sun has been awfully quiet lately, but that could change starting this month, scientists say.
Hubble's best evidence yet for 'missing link' of black holes may solve 14-year-old space mystery By Elizabeth Howell Hubble is tracking down a suspected black hole that shredded a wayward star.
Shutdowns from coronavirus create blue skies in California, could inform future pollution control By Chelsea Gohd Blue skies and fluffy white clouds have come to California, but it isn't good news.
1,400-year-old mystery of strange 'red sign' in Japan's sky solved By Meghan Bartels A scarlet fan spread across the skies over Japan 1,400 years ago, and it's been puzzling astronomers ever since.
NASA's Mars rover Perseverance rover has a hidden message for the Red Planet By Mike Wall It won't be the first hidden message that NASA sends to Mars.
