Mars orbiter finds evidence of ancient, long-lived rivers on the Red Planet By Hanneke Weitering Rivers could have been raging on ancient Mars for hundreds of thousands of years, a new study finds.
Space technologies can help solve Earth's challenges (op-ed) By Dylan Taylor Space exploration technologies have already helped benefit Earth in many ways, especially when it comes to communications, Earth observation and even fostering economic growth.
Kepler-88 has a new king! Planet three-times Jupiter's mass discovered in alien star system By Gemma Lavender A new world has been confirmed in the Kepler-88 planetary system, tipping the scales at three-times the mass of solar system giant Jupiter.
Scientists get their best-ever look at Jupiter's atmosphere and storms By Meghan Bartels It's always dark and stormy on Jupiter — and now, scientists have gotten their most detailed view of the wild storms that swirl through the gas giant's atmosphere.
Four amazing astronomical discoveries from ancient Greece By Gareth Dorrian, Ian Whittaker Almost as interesting as what they knew, however, is what they did not know.
Inside the world's largest sun-spotting telescope By Nola Taylor Redd In January 2020, Space.com had the chance to get up close and personal with the Daniel K. Inoye Solar Telescope, the world’s largest solar telescope.
Solar-sailing sentries could allow up-close study of interstellar visitors like 'Oumuamua By Mike Wall A fleet of solar-sailing sentries stationed far from the sun could someday allow scientists to get up-close looks at interstellar visitors like the mysterious 'Oumuamua.
Japanese probe's asteroid Ryugu encounter hints at space rock's dynamic history By Meghan Bartels A Japanese spacecraft trekking across the solar system has yet to deliver its precious cargo of space rocks, but its data is already giving scientists a preview of an asteroid's dynamic history.
NASA starts packing Mars rover Perseverance ahead of July launch By Mike Wall Percy keeps rolling through milestones here on Earth.
New image captures 'impossible' view of the moon's surface By Brandon Specktor Photographer Andrew McCarthy photographed the demarcation between the moon's light and dark sides for two weeks to create this unbelievably crisp image of our satellite's Earth-side craters.
Renowned string theorist proposes new way to hunt our solar system's mysterious 'Planet 9' By Rafi Letzter A new paper by physicist Edward Witten proposes hunting Planet 9 using a fleet of laser-launched probes like Breakthrough Starshots'.
Scientists identify tiny satellite around an asteroid NASA's Lucy spacecraft will visit By Meghan Bartels NASA's Lucy asteroid mission already faced a busy itinerary with seven different space-rock targets. Now, the team has discovered that one of those asteroids has a tiny companion.
Dead Cassini spacecraft could solve mystery of Saturn's hot atmosphere By Elizabeth Howell A spacecraft that died in 2017 is still providing insights about Saturn, the planet it studied up close for 13 years.
Turbulent skies of nearby 'failed star' marked by thick cloud bands By Mike Wall Scientists have spotted evidence of Jupiter-like stripes in the thick atmosphere of a nearby brown dwarf, a new study reports — and this evidence was gathered in a novel way.
Giant, scorching-hot alien planet has yellow skies By Mike Wall We can now add atmospheric craziness to WASP-79b's already substantial exotic appeal.
NASA space lasers track Earth's disappearing ice sheets and sea-level rise By Chelsea Gohd Using NASA space lasers, scientists have tracked how ice sheets in Greenland and the Antarctic have changed over the last 16 years, showing the drastic effects of climate change.
Astrophysicist Katie Mack talks the end of the universe tonight! Here's how to watch live. By Mike Wall Astrophysicist Katie Mack will talk about the end of the universe today (May 6), and you can follow the discussion live — and even ask her a question, if you'd like.
Newfound black hole is the closest one to Earth we've ever found By Hanneke Weitering A newfound black hole may be the closest black hole to Earth, and you can spot its cosmic home in the night sky without a telescope.
The hunt for asteroid impacts on the moon heats up with new observatory By Meghan Bartels Sometimes a flash in the night is actually an asteroid slamming into the moon.
Tiny asteroid's super-close Earth flyby shows planetary protection in action, scientists say By Meghan Bartels On April 27, something caught the eyes of astronomers poring through data gathered by the Pan-STARRS Observatory in Hawaii: a previously unknown space rock, and one that was very close to Earth.
