Rivers could have been raging on ancient Mars for hundreds of thousands of years, a new study finds.
Space exploration technologies have already helped benefit Earth in many ways, especially when it comes to communications, Earth observation and even fostering economic growth.
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.
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.
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.
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.
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.
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.
A new paper by physicist Edward Witten proposes hunting Planet 9 using a fleet of laser-launched probes like Breakthrough Starshots'.
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.
A spacecraft that died in 2017 is still providing insights about Saturn, the planet it studied up close for 13 years.
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.
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 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.
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.
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.