Science & Astronomy Archive
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, 04:49 PM ET
There used to be nine planets. Now there are eight. Whichever you prefer, here is a list of them in the order they appear in the solar system.
31 March 2015, 12:45 PM ET
Much is unknown about Pluto, including what its surface features are like and what kind of weather patterns it has, if any.
31 March 2015, 12:00 PM ET
Space.com's editors present a reading list for space and sci-fi lovers, as well as children who are interested in astronomy and spaceflight.
31 March 2015, 11:10 AM ET
Pluto was considered a planet until 2006, when it was reclassified as a dwarf planet.
31 March 2015, 11:00 AM ET
See live high-definition views of Earth as seen from the International Space Station.
31 March 2015, 10:00 AM ET
Space.com had the amazing opportunity to sit down with screenwriter Jonathan Nolan and astrophysicist Kip Thorne, to talk about the science of the science fiction epic 'Interstellar,' and reasons for humanity to leave Earth.
31 March 2015, 08:00 AM ET
This week the science fiction movie epic 'Interstellar' gets released on Blu-ray, with 3 hours of science-packed bonus material that will have space fans drooling.
31 March 2015, 07:00 AM ET
Many astronomers had thought rocky, potentially habitable worlds could not take shape in the complex environment around binary stars. But mathematical simulations suggest otherwise, a new study reports.
31 March 2015, 07:00 AM ET
Earlier this month, researchers made two big announcements: Saturn's moon Enceladus likely harbors hot springs, and Jupiter's huge satellite Ganymede apparently possesses a subsurface ocean that may contain more water than all of Earth does.
30 March 2015, 04:20 PM ET
NASA's Opportunity Mars rover has suffered another bout of amnesia, less than a week after engineers installed a software upgrade designed to fix its memory problems. The March 25 event didn't result in the loss of any science data.
30 March 2015, 12:13 PM ET
In anticipation of the Blu-ray and DVD release of the movie "Interstellar" this week, fans can also enjoy an online text-based game, a website about the scienc of the movie, and a special screening on April 7.
30 March 2015, 07:06 AM ET
You would think the battered moon doesn't need one more crater. But thanks to data from NASA's Gravity Recovery and Interior Laboratory (GRAIL) mission, a massive crater has been found, provisionally named the crater Earhart.
30 March 2015, 07:00 AM ET
New Horizons becomes the first probe to explore Pluto in mid-2015.
30 March 2015, 07:00 AM ET
Scientists are considering further targets for NASA's New Horizons spacecraft to visit following its Pluto encounter this summer, should funding be provided.
30 March 2015, 06:50 AM ET
Here's a quick look at the evolution of NASA's Asteroid Redirect Mission (ARM), which originally envisioned bagging up an entire space rock but will now pluck a boulder from a large asteroid.
30 March 2015, 06:40 AM ET
If an alien planet in a distant solar system were home to microscopic life-forms, how might scientists see them and even decipher their identity? A new catalog of Earth-based life forms may provide a first step.
29 March 2015, 10:00 AM ET
Last week, NASA's Messenger spacecraft executed the first of a series of engine burns designed to lift the probe's orbit slightly and delay its inevitable impact into Mercury's surface by up to a month.
29 March 2015, 09:51 AM ET
Two spaceflyers blasted off on the first-ever yearlong mission to the International Space Station and NASA announced its plan to haul a boulder from a near-Earth asteroid to lunar orbit. Here's a look at Space.com's top stories of the week.
28 March 2015, 01:34 PM ET
From the first (contraband) corned beef sandwich in space to astronomy's oldest known 'Nova,' don't miss these amazing space images of the week for March 29, 2015.
27 March 2015, 05:00 PM ET
Astronomers have spotted a fourth star in a planetary system called 30 Ari, bringing the number of such known quadruple-sun systems to two. Numerous two- and three-star planets have been identified.
27 March 2015, 04:20 PM ET
New experiments show that the asteroids that slammed into Earth and the moon more than 4 billion years ago were vaporised into a mist of iron but stayed gravitationally stuck on more massive Earth.
27 March 2015, 08:00 AM ET
Despite a forward-looking and overall healthy NASA planetary science program budget, two on-duty spacecraft are now on the chopping block.
27 March 2015, 03:28 AM ET
For moon shots, a rural sky is not always necessary.
27 March 2015, 03:14 AM ET
How super is a supermoon? Here's a minimoon for context.
26 March 2015, 06:00 PM ET
The first spacecraft to make a soft-landing on a comet is still quiet on the dusty cosmic body, despite being hailed by another probe orbiting the lander.
26 March 2015, 04:17 PM ET
NASA and Russia are launching a joint one year mission to the International Space Station. NASA's Scott Kelly and cosmonaut Mikhail Kornienko will blast off to the orbiting outpost on March 27, 2015 EDT.
26 March 2015, 02:02 PM ET
Dark matter living in galaxy clusters doesn't splatter when the galaxies collide, according to new research. The finding suggests dark matter particles, whatever they are, are not part of a "dark sector" that mirrors our own universe.
26 March 2015, 02:00 PM ET
A small cloud of rocket fuel glowed faintly in the night sky above the Atlantic Ocean on the night of March 12, following a launch from Cape Canaveral Air Force Station, Florida. Skywatcher Scott Gauer photographed the glowing cloud from Danville, Penn.
26 March 2015, 02:00 PM ET
The iron heart of Earth's moon has been measured more precisely than ever before. In a new study, scientists used X-rays to study the type of iron likely presence in our lunar companion's core.
26 March 2015, 10:11 AM ET
A NASA spacecraft is expected make its historic arrival in orbit around the dwarf planet Ceres, marking the first time a human-made probe has visited the cosmic body in history.
26 March 2015, 08:47 AM ET
Known to many as "G2," the unidentified object making a loop around the monster black hole at the center of our galaxy could be a cloud of gas, or it could be a star, depending on who you ask.
26 March 2015, 08:00 AM ET
An astronaut and a cosmonaut spend an entire year aboard the ISS to provide data on the health implications of space travel.
26 March 2015, 07:00 AM ET
NASA intends to pluck a boulder off a near-Earth asteroid and haul it into orbit around the moon. Agency officials haven't decided upon the target asteroid yet, but the leading contender at the moment is the 1,300-foot-wide 2008 EV5.
25 March 2015, 06:23 PM ET
Have you ever wondered what it would be like to live on the moon? What about Mars, or Venus or Mercury? We sure have and that's why we decided to find out what it might be like to live on other worlds in our solar system, from Mercury to Pluto and beyond
25 March 2015, 02:50 PM ET
The search for alien life doesn’t end within the boundaries of our solar system. Scientists are now search for moons orbiting alien planets that might play host to extraterrestrial life.