22 April 2015, 10:15 AM ET
Super-cold nitrogen geysers on Neptune’s moon Triton, and hot sulfurous plumes high above Jupiter’s moon Io, reveal how these fascinating worlds work. Watch ‘Secrets of the Universe’ on Hulu. http://www.hulu.com/secrets-of-the-universe
22 April 2015, 07:00 AM ET
Exoplanet 51 Pegasi b, located ~50 light years away in Pegasus, was suspected in 1995 from the motion of its star. Now the HARPS instrument at ESO’s La Silla Observatory has detected the spectrum of that star's visible light reflected off the planet.
21 April 2015, 01:38 PM ET
When a massive star dies, it re-seeds the universe with elements to form more complex stars. When astronomers witness these cataclysms, they begin to think differently about how the universe works. Watch ‘Secrets of the Universe’ on Hulu. http://www.
21 April 2015, 12:04 PM ET
When HST can no longer do science, should we deorbit and destroy it, extend its life with another servicing mission, or boost it into a safe "museum piece" orbit? NASA's John Grunsfeld explains.
20 April 2015, 01:49 PM ET
Orbiting into the daylight side of the dwarf planet, NASA's Dawn probe acquired new images of the bright spots that have grabbed scientists’ attention.
20 April 2015, 12:03 PM ET
Rosetta’s OSIRIS imager captured the birth of a dust stream through successive images 2 minutes apart. Comet 67P/Churyumov-Gerasimenko is 'waking up' as it approaches the Sun. The puff from a shadowed region of the comet surprised scientists.
19 April 2015, 06:26 PM ET
'The goal is to bring science to people who know that they don't like science,' Tyson tells Space.com, 'My guests are hardly ever scientists; they're people hewn from pop culture. And I – the interviewer – am the scientist, not the journalist.'
17 April 2015, 09:35 AM ET
The cast and crew of "Episode VII: The Force Awakens" and the entire convention were thrown into a tizzy after the second teaser was revealed. Hear reactions from Mark Hamill, J.J. Abrams, Kathleen Kennedy and more.
17 April 2015, 09:12 AM ET
After spending more than a month orbiting the dark side of the dwarf planet, NASA's probe finally captured some daylight gleaming off the north pole. This series of images were captured on April 10th, 2015 at a distance of 21,000 miles (33,000 km).
16 April 2015, 01:51 PM ET
NASA astronaut John Grunsfeld (now Associate Admin. for the Science Mission Directorate) looks back at how Hubble’s upgradable design can help us create more powerful space-based observatories.
15 April 2015, 04:41 PM ET
The second attempted ocean barge landing of the first stage of the SpaceX rocket touched down on the barge but a little too hard. The rocket successfully launched the Dragon cargo ship to the Space Station.
15 April 2015, 01:45 PM ET
NASA astronaut Terry Virts took a GoPro camera with him on an Extra Vehicular Activity (EVA) outside the International Space Station on February 25th, 2015.
15 April 2015, 11:37 AM ET
The world looks different to Neil deGrasse Tyson because he’s an astrophysicist. When a great communicator gets his hands on an elegant tool, enlightenment (and, yeah, a little ego) ensues. But why did @NeilTyson choose Twitter? He tells Space.com.
14 April 2015, 04:44 PM ET
Through 25 years on-orbit, the Space Telescope has repeatedly changed our understanding of the Universe. Astronaut John M. Grunsfeld, now NASA's Associate Administrator Science Mission Directorate, illuminates why we love this instrument.
14 April 2015, 04:16 PM ET
Atop a Falcon 9 booster, SpaceX’s Dragon cargo spacecraft – loaded with 4,000+ lbs of supplies and experiments – was launched from the Cape Canaveral Air Force Station in Florida on April 14th, 2015.
14 April 2015, 10:48 AM ET
The International Space Station's cupola provides astronauts with stunning views of Earth and the cosmos. ESA astronaut Alexander Gerst can be seen within, as the exterior ballet of window covers proceeded.
14 April 2015, 09:55 AM ET
Ground-based and Hubble images of Pluto suggest it might be the reddest object in the Solar System. New Horizons' Principal Investigator Alan Stern explains how this could have happened.
13 April 2015, 05:20 PM ET
United Launch Alliance, a cooperative launch service by Lockheed Martin and Boeing, unveiled its Next-Generation Launch Vehicle, on April 13, 2015. ULA Vulcan can be more cost-competitive with SpaceX and other launch providers.
10 April 2015, 09:13 AM ET
After seeing the designs for the original 'Millennium Falcon', George Lucas decided that it looked too much like the British sci-fi series' spaceship.
09 April 2015, 09:33 PM ET
During a February 2015 parabolic flight, a nylon net was blasted from a compressed air gun towards a scale-model satellite.
09 April 2015, 01:47 PM ET
Now 25 years on-orbit, the Hubble Space Telescope has been used to make amazing astronomical discoveries. But the James Webb Space Telescope (JWST) will peer into the infrared universe to unravel some of humanity's greatest questions.
08 April 2015, 03:30 PM ET
The International Space Station’s 3D printer, by Made In Space, Inc., was tested several times on-orbit. Printed items were sent ‘downhill’ to Earth in Feb. 2014 on a SpaceX Dragon.
08 April 2015, 01:45 PM ET
Flying twice the speed of a Space Shuttle, a collision with cosmic debris could be catastrophic. Flying twice the speed of a Space Shuttle, a collision with cosmic debris could be catastrophic.
08 April 2015, 01:01 PM ET
The protoplanetary disc around a constellation of Taurus star, named MWC 480, harbors enough methyl cyanide (CH3CN) to "fill all of Earth’s oceans," according to the European Southern Observatory.
07 April 2015, 03:15 PM ET
Astronomers working with the ALMA telescope in Chile, took high resolution images of the ring-shaped image of light from a galaxy almost 12 billion light-years away. Such circlets form when a massive cluster of galaxies lies along our line of sight.
06 April 2015, 10:16 AM ET
On April 4th, 2015, some skywatchers were treated to to a total lunar eclipse, which was the shortest 'Blood Moon' this century. The Griffith Observatory in California captured the event.
03 April 2015, 09:33 AM ET
NASA Space Launch System first flight, names Exploration Mission-1, will not carry humans but will carry the Orion Spacecraft on a swing around the Moon.
01 April 2015, 03:11 PM ET
The orbiting Global Precipitation Measurement (GPM) Constellation quantifies precipitation across the entire Earth. Data 'swaths' from 10 satellites overlay to form NASA's animated Integrated Multi-satellite Retrievals for GPM (IMERG).
01 April 2015, 10:52 AM ET
In the 2015 Space Apps Challenge (April 10-12), engineers, artists, entrepreneurs and others collaborate to find solutions to world challenges. NASA astronaut Cady Coleman explains.
31 March 2015, 05:04 PM ET
The Mars Science Laboratory and components of the delivery spacecraft whence it came have been spied by the Mars Reconnaissance Orbiter on several occasions since in August 2012.
31 March 2015, 01:20 PM ET
In the early morning hours of April 4th 2015, a total lunar eclipse will be visible from many parts of the world. But why will the moon appear dark red? Science@NASA explains.
30 March 2015, 02:40 PM ET
On April 4th, Earth’s shadow on Luna will visible from parts of 3 continents. After midnight on April 22nd, 10 to 20 meteors per hour will rain.