Science & Astronomy Archive
01 August 2015, 02:18 PM ET
An alien aurora 1 million times brighter than Earth's, robots building a moon telescope, a $5.5 billion asteroid and more in Space.com's top news stories of the week.
31 July 2015, 06:55 PM ET
From an amazing view of Africa from space to a tint galaxy bursting with stars, don't miss these stunning space images.
31 July 2015, 06:00 PM ET
Could we actually be living in the Matrix? You might be surprised.
31 July 2015, 05:19 PM ET
A 16-year-old New York City-area student will one day see her DNA experiment launched to the International Space Station. The experiment was designed by Anna-Sophia Boguraev of Bedford, New York.
31 July 2015, 03:25 PM ET
Asteroid 1999 JD6's nearest approach to Earth was ~4.5 millions miles away but it was close enough for radar images to be captured. The object is a "contact binary consisting of two lobes," according to NASA's Jet Propulsion Laboratory.
31 July 2015, 03:10 PM ET
The ashy peak of a volcano stands out amid a snowy scene, hinting at a recent eruption, in newly released images from NASA.
31 July 2015, 09:34 AM ET
Planet HD 219134b was detected using NASA's Spitzer Space Telescope. It resides 21 light-years away in the Cassiopeia constellation and its star is visible from Earth. The planet orbits too close to its star to support life.
31 July 2015, 08:40 AM ET
For the next six months, NASA's Saturn-orbiting Cassini spacecraft will get its final look at two icy moons -- one famous and one not so well-known -- before preparing for mission's end in 2017.
31 July 2015, 07:00 AM ET
NASA's Hubble Space Telescope and the Keck Observatory in Hawaii have helped researchers characterize a Uranus-mass exoplanet that had remained mysterious since its discovery a decade ago.
31 July 2015, 06:00 AM ET
Scientists with the SETI (Search for Extraterrestrial Intelligence) Institute have already begun targeting Earth's older cousin, Kepler 452b, the first near-Earth sized world found in the habitable zone of a sun-like star.
31 July 2015, 12:20 AM ET
Earth's magnetic field, which protects the planet from harmful blasts of solar radiation, is much older than scientists had previously thought, researchers say.
30 July 2015, 06:15 PM ET
The alien planet, called HD 219134b, is about 4.5 times more massive than Earth, making it a so-called "super Earth." HD 219134b lies extremely close to its host star, completing one orbit every three days, so its surface is too hot to harbor life.
30 July 2015, 05:25 PM ET
A wisp of a galaxy is rich with new, blue-white young stars and primordial gas in this new cosmic photo from the Hubble Space Telescope. The irregular dwarf galaxy is creating stars the size of our sun at a prodigious rate of about once a year.
30 July 2015, 05:24 PM ET
This month the European Space Agency took a major step closer to an ambitious exploration of Jupiter and its icy moons.
30 July 2015, 04:06 PM ET
This gorgeous satellite view of the busy Big Apple as seen from orbit offers a glimpse into the new 'My Planet From Space' exhibit currently underway at the United Nations.
30 July 2015, 03:35 PM ET
Despite its tranquil-sounding name, new imagery from the Hubble Space Telescope reveals a dusty nebula shaped by "intense winds from hot stars, churning funnels of gas, and energetic star formation.” It is located in the Sagittarius constellation.
30 July 2015, 02:01 PM ET
The structure, composition and evolutionary history of comets are starting to come into focus, thanks to observations beamed home by the European Space Agency's Philae lander, the first probe ever to touch down on one of these icy objects.
30 July 2015, 02:01 PM ET
Philae has been incommunicado on the surface of Comet 67P for three weeks. The lander team would love to get Philae up and running again soon, so they can get an up-close look at how the comet is affected by its Aug. 13 closest solar approach.
30 July 2015, 02:00 PM ET
Scientists have released new information about comet 67p and what the Philae lander discovered there.
30 July 2015, 11:30 AM ET
A NASA satellite that stares nonstop at the sunlit side of Earth has captured this captivating, crystal-clear view of Africa as the continent appears from space.
30 July 2015, 09:01 AM ET
When a heated asteroid surface rotates into darkness, thermal radiation can act as a "sort of mini-thruster," changing the space rock’s trajectory. This phenomena is called the Yarkovsky effect is nicely explained here.
30 July 2015, 07:09 AM ET
Life may have thrived in the oceans and lakes that once covered Mars — but some organisms may have survived long after the water dried up. Could scientists still find evidence of these last life-forms on Mars?
30 July 2015, 07:01 AM ET
Members of NASA's Mars Reconnaissance Orbiter (MRO) science team are asking the public to help them categorize strange features near the Red Planet's south pole for further study and analysis.
30 July 2015, 07:00 AM ET
NASA’s Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft and India's Mangalyaan probe both began circling the Red Planet last September, bringing the total number of operational Mars orbiters to five — the most ever.
29 July 2015, 04:17 PM ET
As a small galaxy crosses paths with a gigantic galaxy, its "fluffy outer parts" are stripped according to the the simulation creators M. Sandoval and A. Romanowsky. The dense core is what remains.
29 July 2015, 02:56 PM ET
Enhanced imagery of Saturn satellite Tethys show arcing streaks spanning hundreds of mile across the battered surface. These may be ice with organic impurities, outgassing from within the moon, or markers of fractures in the frozen rock.
29 July 2015, 01:34 PM ET
The desert regions of Saturn's moon Titan may have once hosted water that left behind traces of dry material on the surface, like rings on a bathtub, new research suggests.
29 July 2015, 01:01 PM ET
Astronomers have discovered the first aurora ever seen outside the solar system, an alien light show more powerful than any other aurora ever witnessed, perhaps 1 million times brighter Earth's northern lights.
29 July 2015, 11:58 AM ET
The dark red pole on Pluto's largest moon Charon may be some of the dwarf planet's own siphoned-off atmosphere.
29 July 2015, 07:01 AM ET
Colorful new maps of the dwarf planet Ceres reveal its dramatic mountains and deep craters, now with official new names.
29 July 2015, 07:01 AM ET
The Space Launch System megarocket, scheduled to fly for the first time in 2018, will blast unmanned spacecraft toward their targets at unprecedented speeds, dramatically reducing interplanetary travel times, advocates say.
29 July 2015, 07:01 AM ET
On Friday, much of the world will have the opportunity to observe a Blue Moon: A somewhat rare occurrence that doesn't have anything to do with the moon's color.
29 July 2015, 07:00 AM ET
Researchers are making strides on a radio telescope array that would be unfurled on the farside of the moon by an unmanned rover operated by astronauts hovering nearby at a gravitationally stable point in space.
28 July 2015, 08:20 PM ET
See photos and images of Ceres, a dwarf planet and the largest asteroid in the solar system yet known. Ceres is round and may contain more fresh water than the entire Earth. NASA's Dawn spacecraft will explore Ceres in 2015.
28 July 2015, 05:14 PM ET
The New Technology Telescope at ESO’s La Silla Observatory imaged Nova Centauri 2013 (V1369 Centauri) in July 2015, discovering the unexpected presence of the element lithium.
28 July 2015, 12:35 PM ET
NASA’s Dawn probe compiled topographic data from images taken at different times and Sun-angles. Colors represent elevations - starting 3.7 miles (6 kilometers) below the average surface (purple) to 3.7 miles (6 kilometers) above (brown).