14 April 2014, 08:08 PM ET
Objects at the Solar System's edge could one day show scientists how life arose on Earth. That's because many of these objects could contain organics, carbon-based material that are ingredients of life.
14 April 2014, 06:31 PM ET
Many attendees of the Pluto Science Conference in July 2013 referenced it as a planet. NASA's New Horizon mission, that will deliver the first reconnaissance of Pluto in 2015, will help resolve the long debate.
14 April 2014, 05:00 PM ET
The spectacle is often more beautiful and interesting than one would think. During the time that the moon is entering into and later emerging from out of the Earth's shadow, secondary phenomena may be overlooked.
14 April 2014, 04:38 PM ET
The first total lunar eclipse of 2014 will occur overnight tonight, marking the start of an eclipse tetrad — four back-to-back total lunar eclipses — that will happen over the next 18 months.
14 April 2014, 04:30 PM ET
Tonight, if the weather is clear, favorably placed skywatchers will have a view of one of nature's most beautiful spectacles: a total eclipse of the moon.
14 April 2014, 04:21 PM ET
The company's unmanned Dragon spacecraft was scheduled to blast off today at 4:58 p.m. EDT from Florida's Cape Canaveral Air Force Station. But the attempt was scrubbed because Dragon's ride to space, a SpaceX Falcon 9 rocket, sprung a leak.
14 April 2014, 02:39 PM ET
NASA planetary scientist Dr.Shawn Domagal-Goldman explains why this phenomenon occurs and also why Earth will experience a tetrad or 4 lunar eclipses in nearly 18 months. Total Lunar Eclipse Skywatching Guide: http://goo.gl/TjZIzU
14 April 2014, 01:38 PM ET
The Falcon 9 rocket carrying a Dragon capsule bound for the Space Station, was lifted into its vertical position at its Cape Canaveral Air Force Station launch pad. Read more about re-usable tech: http://goo.gl/QUc4zC
14 April 2014, 01:16 PM ET
More than 900 people are working to achieve what Einstein thought impossible: Detection of gravitational waves from cataclysmic events billions of light years away. Until now, we've been deaf to our Universe. We're about to turn on our ears.
14 April 2014, 12:14 PM ET
A powerful scientific tool set to come online in 2015 could help scientists spot gravitational waves, ripples in space-time born from violent cosmic crashes light-years from Earth.
14 April 2014, 11:43 AM ET
For most U.S. states east of the Mississippi, tonight's total lunar eclipse will likely turn to be a total bust, while in contrast, much of the central and western United States are likely to get a fine view of the 'blood moon' in all its brilliance.
14 April 2014, 07:00 AM ET
It's an audacious plan, the odds of success are low, but SpaceX is going to do it anyway: The private spaceflight company founded by billionaire Elon Musk will launch a rocket with landing legs into orbit today, then try to bring part of it back to Earth.
14 April 2014, 02:01 AM ET
Monday features the launch of SpaceX's third contracted cargo mission to the International Space Station, a great view of a superbright Mars and a total eclipse of the moon overnight.
14 April 2014, 01:14 AM ET
When a private spaceflight company launches its mission to the International Space Station next week it will carry some strange cargo to space.
14 April 2014, 12:01 AM ET
Private rocket company SpaceX is a leader among the new space push to send humans to orbit on commercial craft.
13 April 2014, 07:02 PM ET
Astronauts longing for fresh lettuce in orbit will soon have the chance to grow it for themselves: NASA is sending a mini-farm into space. The next SpaceX Dragon spacecraft to the International Space Station will deliver the Veggie experimental farm.
13 April 2014, 01:31 PM ET
NASA on Sunday (April 13) decided to forge ahead with the planned Monday launch of a commercial SpaceX Dragon cargo ship to the International Space Station despite a computer outage in orbit.
13 April 2014, 10:28 AM ET
A huge night for stargazers is nearly here: On Monday evening (April 14), Mars will make its closest approach to Earth in six years, just ahead of a total eclipse of the moon.
13 April 2014, 12:13 AM ET
What was your favorite space news story of the last week?
12 April 2014, 09:01 PM ET
From images of Europe's first earth-watching satellite launched into space to a hard-to-kill star, don't miss these amazing space images of the week for April 12, 2014.
12 April 2014, 08:10 PM ET
From a stunning panorama of the Milky Way to an aurora in the monglight, don't miss these amazing night sky images by stargazers and Space.com readers.
12 April 2014, 01:43 PM ET
A backup computer outage on the International Space Station is forcing NASA to discuss plans for a possible spacewalk repair by astronauts in orbit, a move that could delay the planned Monday launch of a commercial SpaceX cargo ship to the orbiting lab.
12 April 2014, 08:43 AM ET
Each year, we at Space.com pause to reflect on both April 12 space anniversaries, and space fans around the world do the same with Yuri's Night, a global celebration of human spaceflight.
12 April 2014, 08:00 AM ET
Astrophysicist Neil deGrasse Tyson had made appearances on television before filming "Cosmos," but co-creating and starring in a 13-episode TV show was an entirely different animal, Tyson said here at the American Museum of Natural History on April 9.
12 April 2014, 07:38 AM ET
SpaceX's third Dragon cargo mission is packed with 5,000 lbs. of vital supplies, including some intriguing technology and science experiments. See some of the best experiments riding the Dragon in this Space.com infographic.
12 April 2014, 07:11 AM ET
NASA is studying a glitch with a backup computer on the International Space Station, an issue that could potentially force astronauts to perform a spacewalk repair and delay the planned Monday launch of a SpaceX cargo ship.
12 April 2014, 07:00 AM ET
Fancy a lunar eclipse? Skywatchers in the United States have the chance to see four total eclipses in the next 18 months, beginning with a 'blood moon' on Tuesday (April 15), just in time for Tax Day.
11 April 2014, 07:22 PM ET
A solar flare erupted from an active region on the Sun on April 4th, 2014. NASA's Solar Dynamics Observatory caught a close-up view of the turning and shifting plasma.
11 April 2014, 04:45 PM ET
A slightly dazed group of college students they stepped off a ZERO-G plane to resounding cheers Thursday (April 10), pumping their fists to celebrate a weightless voyage packed with science experiments, including one test that sparked tiny balls of fire.
11 April 2014, 03:12 PM ET
United Launch Alliance launched a payload for the National Reconnaissance Office on April 10th, 2014 from the Cape Canaveral Air Force Station.
11 April 2014, 01:00 PM ET
The ripples from violent cosmic collisions can be felt far across the universe, and thanks to a new, sensitive detector expected to start collecting data next year, scientists might be able to see evidence of those ripples from Earth for the first time.
11 April 2014, 12:16 PM ET
The total lunar eclipse of April 14-15 is the first lunar eclipse of 2014, and kicks of a tetrad of lunar eclipses (group of four). See how to observe the April 15 total lunar eclipse in this Space.com visibility map gallery.