See what's up in the night sky for August 2018, including stargazing events and the moon's phases, in this Space.com gallery courtesy of Starry Night Software.
NASA is preparing for its next big mission: getting up close and personal with the sun. And to do so, the agency needs a killer heat shield.
With every new exoplanet discovered, the same question arises: Could this world host life? That capability requires so much more than liquid water.
Find out what's up in your night sky during August 2018 and how to see it in this Space.com stargazing guide.
A historic NASA spacecraft has landed on long-term display at the museum named for its pilot.
Early this morning, Mars made its closest approach to Earth since 2003 — but if you missed it, the Red Planet is still a magnificent sight to see in the sky.
Where are all the aliens? Scientists have some … unusual theories.
American astronaut Edwin "Buzz" Aldrin made history as the second man to walk on the moon in 1969, just after Neil Armstrong in the Apollo 11 mission.
The Large Hadron Collider accelerated lead nuclei with orbiting electrons along its tunnel for the first time, opening new scientific doors.
What's deadly about these striking swirls in the sea?
XMM-Newton studies some of the most violent space phenomena. It investigates the X-ray emission characteristics of galaxies, black holes, neutron stars and pulsars.
Five of Saturn's 62 moons pose for a cosmic family portrait in this view from NASA's Cassini spacecraft.
Ancient and rare blue crystals from the dawn of the solar system help confirm that the newborn sun was violently active, a new study reports.
A dramatic new satellite photo shows the destructive reach of the wildfires raging across California.
A team of researchers pursuing the search for extraterrestrial intelligence has decided to revive a scale meant to ground alien-detection alerts in reality.
Space.com's editors present a reading list for space and sci-fi lovers, as well as children who are interested in astronomy and spaceflight.
As NASA prepares to announce the astronauts who will fly the first commercial crew missions, an independent safety board is cautioning that it is still too soon to set dates for those flights.
Feed and inspire a kid's thirst for space with these book picks by Space.com's writers and editors.
During Hurricane Irma's advance over the Caribbean in September 2017, the sun coincidentally produced its own space weather. This interfered with communication during the response to the severe terrestrial weather.