02 July 2014, 06:19 AM ET
The space agency's Orbiting Carbon Observatory-2 satellite (OCO-2) blasted off today (July 1) from Vandenberg Air Force Base in California at 5:56 a.m. EDT (0956 GMT), carried aloft by a United Launch Alliance Delta 2 rocket.
02 July 2014, 06:00 AM ET
The Gum 15 nebula will be destroyed by its offspring stars. The La Silla Observatory in Chile observed this future cosmic crime scene in the Vela constellation. The red glow comes from ionized hydrogen. FULL STORY: http://goo.gl/ig8NlB
01 July 2014, 06:40 PM ET
Astronomers are studying the feeding habits of a cosmic cannibal to learn how galaxies grow. The Umbrella Galaxy is surrounded by "crumbs" left over from eating a smaller galaxy.
01 July 2014, 03:25 PM ET
Pluto reaches opposition and can be seen with a medium-sized telescope and dark skies. Dwarf planet Ceres and asteroid Vesta will be quite close to one another on the night sky. But each is a tough target.
01 July 2014, 10:36 AM ET
The Drosophila melanogaster, aka Fruit Fly, shares genes with humans. The Fruit Fly Lab-O1 will fly to Space Station on the 5th SpaceX cargo run.
01 July 2014, 08:22 AM ET
Images by astronaut Reid Wiseman as he floats above Earth in the International Space Station.
01 July 2014, 07:45 AM ET
Starting in late 2016, Cassini will zip between Saturn and its innermost ring a total of 22 times in a mission phase now known as the "Cassini Grand Finale," which will end when the probe intentionally dives into Saturn's atmosphere in September 2017.
01 July 2014, 07:00 AM ET
Cosmic impacts can create novel habitats where life can flourish and preserve the remains of pre-existing life for millions of years, new research suggests.
01 July 2014, 12:36 AM ET
See photos from astronaut Alexander Gerst who is about to take off on a mission to the International Space Station, along with five others.
01 July 2014, 12:00 AM ET
See amazing images of the night sky and cosmos in Space.com's gallery of cosmic images posted in June 2014.
30 June 2014, 01:06 PM ET
NASA’s OCO-2 is designed to watch Earth “breathe,” exhaling, then reabsorbing CO2 as the probe maps and re-maps our planet’s surface. Humanity’s rate of carbon-loading the atmosphere is rapidly accelerating.
30 June 2014, 07:28 AM ET
The space agency's Orbiting Carbon Observatory-2 satellite passed its launch readiness review Sunday, meaning the craft is set to lift off Tuesday from Vandenberg Air Force Base in California at 5:56 a.m. EDT atop a Delta 2 rocket.
30 June 2014, 07:15 AM ET
NASA's Cassini spacecraft marks a big milestone today (June 30) — a decade exploring Saturn and its many moons.
29 June 2014, 11:14 AM ET
What was your favorite space news story of the last week?
28 June 2014, 12:37 PM ET
From the true size of sun's atmosphere to a trio of huge black holes, don't miss these amazing space images of the week for June 28, 2014.
27 June 2014, 04:45 PM ET
The sun's volatile atmosphere is even bigger than scientists expected, a NASA spacecraft has revealed. The space agency's STEREO satellite found that the solar atmosphere, known as the corona, stretches 5 million miles above the sun's surface.
27 June 2014, 04:10 PM ET
Footage from NASA's Solar Terrestrial Relations Observatory, or STEREO, shows the mesmerizing flow of sound-like waves moving through the sun's corona.
27 June 2014, 10:43 AM ET
NASA's Orbiting Carbon Observatory (OCO-2), due to launch on July 1st, 2014, will study the greenhouse gas carbon dioxide. It will dramatically incerease the observation of CO2, delivering important data on its sources and 'sinks'.
27 June 2014, 12:02 AM ET
This cool space wallpaper shows an exit hole through Kevlar–Nextel fabric after hypervelocity testing of the multilayer shielding for ESA’s ATV space freighter, simulating an impact by space debris.
26 June 2014, 04:22 PM ET
The NASA video shows the tense scene at mission control on the night of June 30, 2004, as the Cassini spacecraft prepared to execute a crucial engine burn that would allow it to enter orbit around Saturn.
26 June 2014, 01:25 PM ET
An astronomer has recreated the "Pillars of Creation," which the Hubble Space Telescope captured in a famous photo, using a computer simulation.
26 June 2014, 11:41 AM ET
A computer simulation shows how an interstellar cloud of gas and dust can collapse and expand over 1.6 million years, forming "elephant trunks" like the ones seen in the "Pillars of Creation." FULL STORY: http://goo.gl/4Ke1Sj
25 June 2014, 04:48 PM ET
Astronomers have discovered an exoplanet in the star Gliese 832's "habitable zone" — the just-right range of distances that could allow liquid water to exist on a world's surface. The planet, known as Gliese 832c, lies just 16 light-years from Earth.
25 June 2014, 01:01 PM ET
Scientists have just discovered a distant galaxy with a trio of supermassive black holes at its core. The new finding suggests tight-knit groups of these giant black holes are far more common than previously thought.
25 June 2014, 09:50 AM ET
Earth's nearest star has bad weather too. The sun's bad weather, however, is more than just a little rain and lightning. Huge droplets of hot plasma about the size of Maine fall from the sun's outer atmosphere (the corona) down toward its surface.
25 June 2014, 07:30 AM ET
Recent observations from the largest solar telescope on Earth reveal a never-before-seen look at fine structures on the sun.
25 June 2014, 07:22 AM ET
Using vintage telescope data, scientists have attempted to map Pluto's icy depths before a NASA spacecraft reaches the distant dwarf planet in 2015.
24 June 2014, 06:04 PM ET
The asteroid-mining firm Planetary Resources and citizen-science site Zooniverse have teamed up to launch Asteroid Zoo, which asks people around the world to scour image archives for undiscovered space rocks that zoom close to Earth.
24 June 2014, 04:59 PM ET
The electrically charged gas falls from the Sun's corona to the surface. The 'coronal rain' was captured by Swedish 1-m Solar Telescope (SST).
24 June 2014, 04:37 PM ET
NASA's Chandra X-ray Observatory and the European Space Agency's XMM-Newton satellite spotted a spike of X-ray emission coming from more than 70 galaxy clusters. The X-rays could be generated by the decay of one type of dark-matter particle.
24 June 2014, 03:06 PM ET
The mysterious signal was detected by NASA's X-Ray Observatory and ESA's XMM-Newton in the Perseus galaxy cluster and 73 others. Scientists think that this may be the work of a hypothetical particle called a sterile neutrino.
24 June 2014, 02:36 PM ET
The Big Bear Solar Observatory has delivered high definition views of a sunspot. The data will be used to unravel mysteries presented by these dark and concentrated magnetic fields.