08 March 2015, 12:48 PM ET
A powerful camera spotted a comet and scientists captured images of a supernova four different times. Here are Space.com's pics for the top space stories of the week.
07 March 2015, 02:34 PM ET
From an amazing photo of Comet Lovejoy captured by a dark energy camera to Comet 67P/Churyumov-Gerasimenko, don't miss these amazing space images of the week for March 7, 2015.
07 March 2015, 01:19 PM ET
"I just let go with one hand ... it was this incredible spectacular view"
07 March 2015, 08:45 AM ET
NASA's Dawn probe has begun orbiting Ceres, but the spacecraft still has some traveling to do before it starts taking the dwarf planet's measure. The spacecraft won't begin science operations until late April.
06 March 2015, 08:46 PM ET
In an interview with XPRIZE, former NASA astronaut Rusty Schweickart recalls how a minor camera malfunction (on the first spacewalk of the Apollo program) gave him five minutes of "incredible" Earth views to appreciate.
06 March 2015, 05:20 PM ET
In a blast from the space-age past, the National Archives released an awesomely retro 1965 advertisement for NASA's traveling outreach program, the Spacemobile.
06 March 2015, 10:00 AM ET
NASA's Dawn probe arrived at Ceres today (March 6) at 7:20 a.m. EST, becoming the first spacecraft ever to orbit a dwarf planet, and the first ever to orbit two celestial bodies beyond the Earth-moon system.
06 March 2015, 08:13 AM ET
Entrepreneur Richard Branson aims to take paying passengers into space in the next few years.
06 March 2015, 07:30 AM ET
European governments have received no word from the U.S. Air Force in the month since the Feb. 3 debris-producing explosion aboard a military weather satellite in a heavily trafficked orbit but said they hadn’t expected any.
06 March 2015, 12:00 AM ET
If all goes according to plan on Friday morning (March 6), Dawn will become the first spacecraft ever to visit a dwarf planet, and the first to circle two different objects beyond the Earth-moon system.
05 March 2015, 05:30 PM ET
See amazing images of the night sky and cosmos in SPACE.com's gallery of cosmic images posted in February 2015.
05 March 2015, 07:18 AM ET
While NASA's Dawn probe will soon begin the first in-depth examination of Ceres, astronomers have learned a bit about the dwarf planet already. Here are seven weird facts about Ceres.
05 March 2015, 07:00 AM ET
The European Space Agency's Rosetta spacecraft took the picture during a close flyby of Comet 67P/Churyumov-Gerasimenko on Feb. 14, when the sun, spacecraft and comet were all neatly aligned.
04 March 2015, 01:50 PM ET
Two astronauts in space said goodbye to a science fiction legend on Earth by beaming back striking photos from the International Space Station.
04 March 2015, 07:19 AM ET
NASA is celebrating the 100-year anniversary of its predecessor, NACA — the National Advisory Committee for Aeronautics — and you can watch the celebration live online today (March 4).
04 March 2015, 07:00 AM ET
The Dawn mission's unprecedented deep-space feats are enabled by the probe's innovative propulsion system, which is about 10 times more efficient than traditional chemical thrusters, NASA officials say.
03 March 2015, 07:19 PM ET
Comet 67P/Churyumov–Gerasimenko is a small body visited by the Rosetta spacecraft in the first mission to land on a comet.
03 March 2015, 03:11 PM ET
When U.S. astronauts next launch to space from Florida, the control team that oversees their liftoff may celebrate with the traditional crock of beans. If so, they'll be honoring the legacy of test director Norm Carlson, too.
03 March 2015, 02:00 PM ET
Put six people into an isolated environment for months at a time, and lots of things can happen: frustration, conflict, or at best — a tight-knit group of people working happily for a common goal.
03 March 2015, 12:45 PM ET
Jupiter's moon Europa suffers from extreme cold and deadly radiation, but its astronomical and geological sights are unique in the solar system.
03 March 2015, 12:00 PM ET
Scientists believe conditions may be right for life, under Europa's icy crust.
03 March 2015, 07:45 AM ET
NASA's Dawn will investigate Ceres' bright spots and other mysteries after it enters orbit around the dwarf planet at about 7:20 a.m. EST (1220 GMT) on Friday (March 6).
03 March 2015, 07:00 AM ET
While investigators continue to study the dramatic Feb. 3 death of the DMSP-F13 satellite, signs currently point to failure of the power system aboard the spacecraft, which launched in 1995.
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, 04:01 PM ET
A 20-year-old military weather satellite apparently exploded in orbit Feb. 3 following what the U.S. Air Force described as a sudden temperature spike.
02 March 2015, 04:00 PM ET
NASA's Dawn probe is scheduled to slip into orbit around Ceres — the largest object in the main asteroid belt between Mars and Jupiter — at 7:20 a.m. EST (1220 GMT) Friday, wrapping up a deep-space chase that lasted two-and-a-half years.
02 March 2015, 03:40 PM ET
Inserted into Ceres orbit on March 6th, 2015, the Dawn mission has been sending progressively better imagery to Earth since December 2014. Ceres is by far the largest body in the Main Belt of asteroids.
02 March 2015, 02:20 PM ET
The private spaceflight company SpaceX launched a pair of communications satellites to space yesterday (March 1), and you can see amazing videos and photos of the liftoff.
02 March 2015, 11:28 AM ET
The ABS 3A and EUTELSAT 115 West B satellites were launched from Cape Canaveral Air Force Station on Mar. 1st, 2015.
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.