02 March 2015, 05:19 PM ET
F. Curt Michel, an astrophysicist who was among NASA's first scientist-astronauts but who resigned after it became clear he would not fly to the moon, died Feb. 23, 2015. He was 80.
02 March 2015, 09:00 AM ET
NASA scientists will update members of the media on the Dawn spacecraft's mission to the dwarf planet Ceres during a news conference Monday (March 2) at 12 p.m. EST (1700 GMT).
02 March 2015, 07:00 AM ET
Russia says it will support U.S. plans to keep the International Space Station operating through 2024, but then wants to split off three still-to-be launched modules to form a new orbital outpost.
01 March 2015, 02:46 PM ET
The International Space Station is now three steps, or rather spacewalks, closer to being ready for the arrival of new U.S. commercial crewed spacecraft with the completion of a trio of two-astronaut excursions.
01 March 2015, 12:41 PM ET
Astronomers discovered the most gigantic black hole yet known and Leonard Nimoy — Mr. Spock from the beloved "Star Trek" series — passed away at the age of 83. Here are Space.com's pics for the top space stories of the week.
01 March 2015, 11:25 AM ET
The countdown is on to the launch of Apollo 18 and you're invited to witness it from New York City's Times Square. 'Apollo XVIII' by artist Marco Brambilla weaves footage from NASA missions with computer renderings to form a countdown to a fictional moon
28 February 2015, 03:32 PM ET
From a record-setting parafoil flight to a newly-tested space plane, don't miss these amazing space images of the week for March 1, 2015.
27 February 2015, 09:39 PM ET
NASA astronaut Mike Fincke and ESA astronaut Luca Parmitano talk about the inspiration that Star Trek's Mr. Spock delivered to humanity's on-going mission to explore.
27 February 2015, 07:00 AM ET
Inside New Horizons is a small piece of SpaceShipOne, the first privately owned and operated spacecraft to reach space twice within a period of 14 days. The feat, which SpaceShipOne accomplished in 2004, won the $10 million Ansari X Prize.
26 February 2015, 01:38 PM ET
Going to Mars without setting up a colony — round-trip manned missions, in other words — would not be enough for the U.S. to reclaim its leadership in space, nor would setting up human outposts on the moon, Aldrin said.
26 February 2015, 08:08 AM ET
With an eye towards the future, NASA has marked the first 50 years of its two rocket-moving crawler-transporters by taking one of the newly-upgraded massive machines out for a test drive to the launch pad.
25 February 2015, 03:40 PM ET
An American astronaut found water inside his spacesuit helmet at the end of an otherwise flawless spacewalk outside the International Space Station today (Feb. 25), but he was never in any danger, NASA officials say.
24 February 2015, 05:45 PM ET
Have you ever wondered what it would be like to live on the moon? What about Mars, or Venus or Mercury? We sure have and that's why we decided to find out what it might be like to live on other worlds in our solar system, from Mercury to Pluto and beyond
24 February 2015, 07:00 AM ET
International Space Station Commander Butch Wilmore took a photo of himself Saturday (Feb. 21) that captured a gloriously blue, cloud-studded ocean in the background. Fellow spacewalker Terry Virts is reflected in Wilmore's visor.
23 February 2015, 04:35 PM ET
Boeing and the United Launch Alliance are building a new astronaut access tower for Atlas rocket launches of future space taxis for NASA. See how it works.
23 February 2015, 03:31 PM ET
Three Expedition 42 crew members will fly aboard a Soyuz TMA-15M rocket scheduled to launch from Baikonur Cosmodrome in Kazakhstan to the International Space Station
23 February 2015, 01:26 PM ET
Ceres, orbiting between Mars and Jupiter, has almost no gravity, warmth or atmosphere.
21 February 2015, 04:46 PM ET
Europe's last cargo spacecraft came down to Earth in a fiery blaze and scientists reported seeing mysterious plumes emanating from Mars. Here are Space.com's picks for the best space stories of the week.
21 February 2015, 12:42 PM ET
From mysterious plumes on Mars to a space station made of matchsticks, don't miss these amazing space images of the week for Feb. 22, 2015.
21 February 2015, 11:29 AM ET
A company that aims to send tourists to the edge of space in a balloon broke a record today, flying a parafoil higher than anyone has before.
21 February 2015, 10:32 AM ET
Two NASA astronauts successfully completed a 6 hour spacewalk that helped prepare the International Space Station for the arrival of private space taxis. The astronauts are scheduled to compete two additional spacewalks in the next 8 days.
21 February 2015, 12:30 AM ET
Two NASA astronauts will perform a spacewalk outside the International Space Station today (Feb. 21). People on Earth can watch the spacewalk live online.
20 February 2015, 07:15 PM ET
See photos from astronaut Terry Virts on a mission at the International Space Station.
20 February 2015, 01:44 PM ET
See photos from astronaut Samantha Cristoforetti's on a mission at the International Space Station.
20 February 2015, 11:55 AM ET
NASA this week begins work to reassemble parts of the International Space Station to create parking spots for two commercial space taxis.
19 February 2015, 10:39 PM ET
SpaceX is a private spaceflight company that regularly delivers payloads to the International Space Station via its Dragon spacecraft.
17 February 2015, 04:00 PM ET
Mars would not be an easy home for human colonists. See how its lower gravity, thin atmosphere and lack of a magnetic field could make it challenging for a colonist in this Space.com infographic.
17 February 2015, 04:00 PM ET
Life on Mars would be full of chilly weather, large dust storms and geological sights dwarfing anything on Earth.
17 February 2015, 03:02 PM ET
Russia's unmanned Progress 58 spacecraft docked today to the Zvezda service module at 11:57 a.m. EST, delivering 3 tons of food, fuel, experimental hardware and other gear to the six crewmembers aboard the station.
17 February 2015, 01:45 PM ET
Students in the New York City public school system are currently competing for the chance to put a science experiment on the International Space Station, thanks to a new program at the Intrepid Sea, Air and Space Museum in New York.
16 February 2015, 02:28 PM ET
Mars One, which aims to land four pioneers on the Red Planet in 2025 as the vanguard of a permanent colony, has whittled its pool of astronaut candidates down to 100, organization representatives announced Monday.
15 February 2015, 09:23 AM ET
Europe launched a prototype minishuttle on its first space test, SpaceX lofted the DSCOVR space-weather satellite, and scientists questioned whether dark matter is truly "dark." Here are Space.com's picks for the best space stories of the week.
14 February 2015, 12:40 PM ET
From a colorful cosmic "flower" to a smiley face in space, don't miss these amazing space images of the week for Feb. 15, 2015.
14 February 2015, 11:00 AM ET
The unmanned ATV-5, named "Georges Lemaitre," departed at 8:42 a.m. EST Saturday (Feb. 14), ending its six-month stay at the orbiting lab. ATV-5 will come back to Earth Sunday afternoon (Feb. 15), in a closely monitored, fatal dive.
12 February 2015, 06:00 PM ET
NASA is a high-tech space agency but even astronauts and engineers need to cut loose with some wild mission posters. Take a look at some of the wildest mission posters by NASA astronauts and their crewmates in this gallery.
12 February 2015, 12:07 PM ET
The U.S. Astronaut Hall of Fame will honor four space shuttle astronauts this spring as it marks 25 years since its founding. Rhea Seddon, John Grunsfeld, Steve Lindsey and Kent Rominger will be enshrined on May 30 at the Kennedy Space Center in Florida.