31 March 2015, 11:10 AM ET
Pluto was considered a planet until 2006, when it was reclassified as a dwarf planet.
30 March 2015, 07:00 AM ET
New Horizons becomes the first probe to explore Pluto in mid-2015.
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.
24 March 2015, 06:06 PM ET
Opportunity completed the distance covered in the traditional footrace.
24 March 2015, 01:00 PM ET
Triton's surface is so cold, the ground is made of frozen nitrogen.
17 March 2015, 11:29 AM ET
The year 2015 is packed full of amazing astronomical sights in the daytime and nighttime sky, from solar and lunar eclipses to dazzlingly bright planets. See our list of the 9 best stargazing events of the year.
16 March 2015, 04:52 PM ET
Titania, an airless moon of Uranus, is cold and its day is 84 years long. See what it would be like for astronauts on Titania in this Space.com infographic.
12 March 2015, 05:36 PM ET
Titan is probably the least inhospitable place in the outer solar system, but remember to bring oxygen and warm clothing.
10 March 2015, 12:19 PM ET
A constellation of four satellites orbit through Earth's magnetic field to study the mysterious phenomenon called magnetic reconnection.
05 March 2015, 06:00 PM ET
NASA's Dawn spacecraft is getting humanity's best view yet of the tiny survivor from the solar system's earliest days. See what we know about the dwarf planet Ceres in this our infographic.
05 March 2015, 02:01 PM ET
Albert Einstein's General Theory of Relativity celebrates its 100th anniversary in 2015. See the basic facts of Einstein's relativity in our infographic here.
03 March 2015, 12:00 PM ET
Scientists believe conditions may be right for life, under Europa's icy crust.
23 February 2015, 01:26 PM ET
Ceres, orbiting between Mars and Jupiter, has almost no gravity, warmth or atmosphere.
17 February 2015, 04:00 PM ET
Mars would not be an easy home for human colonists. See how its lower gravity, thin atmosphere and lack of a magnetic field could make it challenging for a colonist in this Space.com infographic.
10 February 2015, 03:00 PM ET
Life on the moon would be very different for explorers than life on Earth. See how in this Space.com infographic.
09 February 2015, 04:00 PM ET
ESA's tiny suborbital testbed vehicle could pave the way for later orbital space planes.
03 February 2015, 11:40 AM ET
Conditions on the planet Mercury would make living there a challenge. See what the days and nights might be like on the closest planet to the sun in our infographic.
28 January 2015, 04:38 PM ET
SMAP, or the Soil Moisture Active Passive satellite, will measure groundwater content and frozen/thawed state, all over the world every three days.
09 January 2015, 12:30 PM ET
Flies, flatworms and NASA CATS armed with lasers are on board SpaceX's fifth Dragon cargo ship bound for the International Space Station. See how the science experiments stack up in this Space.com infographic.
05 January 2015, 07:45 PM ET
In a first for space flight, SpaceX will attempt to fly its Falcon 9 booster rocket to a safe landing aboard an offshore platform.
16 December 2014, 02:50 PM ET
Although methane had been discovered before from space, NASA's Curiosity rover made the first in-situ discovery of rapid changes in methane concentration from the surface of Mars.
02 December 2014, 05:59 PM ET
The second in the Hayabusa series will drop probes on and take samples from asteroid 1999 JU3.
25 November 2014, 02:38 PM ET
The capsule will travel about 3,600 miles (5,800 kilometers) from Earth, then zoom back again at high speeds in order to test various systems, including its heat shielding and resistance to radiation.
14 November 2014, 07:30 AM ET
When the Philae attempted touchdown on comet 67P, it bounced off with nearly enough force to drift away into space.
11 November 2014, 04:31 PM ET
The European Rosetta spacecraft's Philae lander aims to be the first probe ever to safely land on a comet. Here's how to land on a spinning ice mountain in space.
07 November 2014, 03:05 PM ET
In the film 'Interstellar,' astronauts use a variety of spacecraft to cross the universe and explore alien worlds. See how they work in this Space.com infographic.
07 November 2014, 02:02 PM ET
Wormhole travel across the universe and supergiant black holes are just some of the wonders seen in the film 'Interstellar.' See how the film's astrophysics works in this Space.com infographic.
06 November 2014, 01:08 PM ET
China's Chang'e series of lunar probes are part of a series leading up to ultimately returning samples of moon rock to the Earth. See how China's lunar exploration program aims for the moon in this Space.com infographic.
03 November 2014, 02:04 PM ET
Virgin Galactic's first SpaceShipTwo spacecraft broke apart in mid-flight on Oct. 31, 2014, killing one pilot and injuring another. See the sequence of events (as known so far) related by the NTSB.
29 October 2014, 01:00 PM ET
NASA's plan is to bring a distant asteroid nearer to Earth, but a competing idea would send humans to one or more asteroids in their native orbits.
22 October 2014, 01:00 PM ET
Astronomers have detected the signatures of hundreds of comets disintegrating in a distant, chaotic solar system 63 light-years away.
17 October 2014, 07:38 AM ET
In a rare celestial event, a comet will pass closer to Mars than the moon is from Earth on Oct. 19, 2014. See how the Comet Siding Spring flyby of Mars works in this Space.com infographic.