Science & Astronomy Archive
07 July 2014, 07:35 AM ET
'Active SETI' sounds like science fiction, but some astronomers are discussing it seriously today. The idea is a controversial, hot-button issue, with some researchers wary of sending signals out to touch base with intelligent aliens.
06 July 2014, 01:01 PM ET
A colossal but glancing smashup with a roughly Earth-size planet could have stripped away much of proto-Mercury's rocky mantle, explaining why the tiny, sun-scorched world has such a huge iron core today, researchers say.
06 July 2014, 12:47 PM ET
What was your favorite space news story of the last week?
05 July 2014, 12:16 AM ET
From a stellar womb to a cosmic cannibal, don't miss these amazing space images of the week for July 5, 2014.
04 July 2014, 10:57 PM ET
From the half-lit moon and mars to Jupiter's farewell, don't miss these amazing objects to watch in the night sky.
04 July 2014, 09:00 AM ET
In the universe of Bell's Brewery, Mars is a strong brew, Uranus a crafty potion mix and Mercury a nimble beer. Such is the thinking behind "The Planets" series of beers that Bell's is pioneering this August.
04 July 2014, 07:00 AM ET
The subsurface ocean inside Saturn’s largest moon, Titan, could be as salty as any body of water here on Earth, a new study reports. Data collected by NASA's Cassini mission suggests Titan's ocean is as salty as the Dead Sea.
03 July 2014, 04:15 PM ET
The image, taken on Wednesday morning (July 2) by a crewmember of the orbiting lab's current Expedition 40, actually captures Arthur when it was still classified as a tropical storm. (Arthur strengthened to hurricane status early Thursday.)
03 July 2014, 02:01 PM ET
Watching the 'heartbeat' of young stars could help researchers more precisely determine the stars' ages, a new study says, which in turn would help astronomers better understand how stars are born and age.
03 July 2014, 02:01 PM ET
What astronomers thought were a pair of potentially life-friendly alien worlds are illusions, apparitions conjured up by a star's intense magnetic activity, a new study suggests.
03 July 2014, 02:01 PM ET
Astronomers have for the first time detected a rocky alien world in an Earth-like orbit around just one star in a two-star system. The new find suggests that such worlds may be common, researchers say.
03 July 2014, 02:00 PM ET
Researchers have used data from satellites and ground-based observations to study young stars' oscillation. They have determined that the stars pulse faster as they grow older. FULL STORY: http://goo.gl/f9Wg10 Credit: Pieter Degroot (KU Leuven), ESO
03 July 2014, 02:00 PM ET
Turns out that two candidate planets thought to reside in the habitable zone of red dwarf star Gliese 581 are not planets at all. New research by astronomers at Penn State University finds that the signals were just magnetic activity from the star.
03 July 2014, 02:00 PM ET
3000 light-years from us a cold ’terrestrial’ world, about 2x Earth’s mass, orbits one of a pair of stars which, in turn, orbit one another.
03 July 2014, 12:52 PM ET
The NOAA GOES 13 Satellite captured the storm from July 2-3, 2014. It has been declared a category-1 storm and its gaining strength. (video looped)
03 July 2014, 11:59 AM ET
The European probe is en route to study comet 67P/Churyumov-Gerasimenko. On June 27-28, 2014, its OSIRIS’ narrow angle camera (NAC) captured the nucleus of the comet rotating at a period of 12.4 hours.
03 July 2014, 07:26 AM ET
Despite the summer heat in the Northern Hemisphere, the Earth is actually at its farthest point from the sun today, July 3. Here's how Earth's orbit and its aphelion work.
02 July 2014, 04:42 PM ET
Researchers at the University of Michigan have recreated NASA Phoenix mission landing site conditions in their lab and determined that Martian salts must interact with ice to make liquid water. FULL STORY: http://goo.gl/mqEnjD
02 July 2014, 04:34 PM ET
It may seem impossible that water could flow on the frigid surface of Mars, but a new study in a simulated Red Planet environment shows that a type of salt there may melt the ice it touches.
02 July 2014, 03:30 PM ET
Powerful radio signals that Jupiter generates could be used to help researchers scan its giant moons for oceans that could be home to extraterrestrial life, according to a recent study submitted to the journal Icarus.
02 July 2014, 10:00 AM ET
Scientists are using the powerful Hubble Space Telescope to figure out where to send NASA's Pluto-bound New Horizons probe next — and they've already found some promising leads.
02 July 2014, 06:26 AM ET
Shining brightly in a new picture, cosmic gas cloud Gum 15 is busily giving birth to massive stars that are, in turn, shaping the cloud's weird structure.
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, 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, 12:00 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, 10:32 AM ET
These amazing photos were taken from the International Space Station.