15 May 2014, 07:30 AM ET
Whenever humans finally touch down on Mars, they'll be following in the footsteps of many brave robotic pioneers. Unmanned missions to the Red Planet have greatly increased scientists' and engineers' ability to eventually pull off a manned Mars effort.
14 May 2014, 01:29 AM ET
Even though it may only be a lump of porous rock, Phobos isn’t shy about hogging the limelight in this space wallpaper taken by ESA’s Mars Express.
09 May 2014, 03:24 PM ET
Bill Nye — the creator and star of the 1990s hit TV show "Bill Nye the Science Guy" — thinks that entertainment can help raise scientifically literate kids.
09 May 2014, 06:25 AM ET
One company wants you to make this Mother's Day out of this world by naming features on Mars for moms on Earth.
08 May 2014, 04:57 PM ET
British planetary scientist Colin Pillinger, whose single-minded determination all but forced the European Space Agency to launch the ill-fated Beagle 2 lander to Mars in 2003, is dead at 70.
08 May 2014, 06:30 AM ET
The Netherlands-based nonprofit Mars One, which aims to establish a Red Planet settlement beginning in 2025, announced Monday (May 5) that it had sliced its pool of potential colonists from 1,058 down to 705.
06 May 2014, 03:18 PM ET
The 1-ton Curiosity rover bored into a slab of Martian sandstone dubbed "Windjana" on Monday evening (May 5). Curiosity will use its scientific instruments to analyze the powder collected during this drilling operation in the coming days.
06 May 2014, 07:01 AM ET
Researchers have proposed putting a plant-growth experiment on NASA's next Mars rover, which is scheduled to land on the Red Planet in early 2021. The investigation could help lay the foundation for the colonization of Mars, its designers say.
03 May 2014, 01:59 PM ET
Stargazers have a chance to see the five brightest planets in the May night sky, weather permitting. Here's how to see Jupiter, Saturn, Mercury
02 May 2014, 04:26 PM ET
Earth may pass through the dust trails of Comet 209P/LINEAR's past orbits, and predictions range from 100 to a 'stormy' 1000 meteors an hour. Also, great views of Saturn, Mars and comet PanStarrs (C/2012 K1) will be available throughout the month.
01 May 2014, 02:05 PM ET
Models show that Mars should be about as big as Earth if gas and dust were distributed smoothly throughout the protoplanetary disk that surrounded the newborn sun 4.5 billion years ago. But Mars is just 10 percent as massive as our world.
29 April 2014, 02:48 PM ET
The space agency outlines their goal to eventually land a human on the Red Planet. There is yet no specific plan or mission design.
29 April 2014, 11:01 AM ET
The 1-ton Curiosity rover has spent the past few days studying a Martian sandstone slab, assessing whether or not to break out its drill and collect samples from the rock's interior.
28 April 2014, 07:01 AM ET
The space agency is developing gigantic supersonic parachutes and inflatable "decelerators" that will slow the descent of heavy gear through the thin Martian atmosphere, allowing large objects such as human habitat modules to make it to the surface in one
28 April 2014, 01:00 AM ET
Spacecraft use multiple methods to slow down enough for a safe landing on Mars. See how Mars landings work in this Space.com infographic.
25 April 2014, 11:56 AM ET
NASA's Curiosity Mars rover has captured the first image of asteroids as seen from the Red Planet surface. Curiosity's historic picture of the Martian sky shows Ceres and Vesta, two of the biggest bodies in the solar system's asteroid belt.
25 April 2014, 07:27 AM ET
In March 2014, scientists gave the public a taste of the Mars-analog research they're doing in California's Death Valley National Park.
25 April 2014, 07:12 AM ET
Last month, researchers took the public on a tour of some Martian analog sites in California's Death Valley National Park as part of MarsFest 2014.
23 April 2014, 06:41 AM ET
In order for humanity to survive into the distant future, we need to visit and even colonize other worlds, according to NASA chief Charles Bolden.
22 April 2014, 07:01 AM ET
Sending astronauts to the surface of Mars has been a longtime goal for NASA and other space exploration agencies. That Martian goal takes center stage in a Washington, D.C. conference, and you can watch it live online.
22 April 2014, 03:40 AM ET
NASA has long held the lead in the exploration of Mars, and that trend will continue, says NASA administrator Charles Bolden.
21 April 2014, 03:47 PM ET
Opportunity has been given a new lease on life after the Red Planet gave the tenacious Mars rover a power-boosting spring clean, blasting dust off its solar panels. Opportunity is still going strong more than 10 years after landing on Mars.
16 April 2014, 05:34 PM ET
Stargazers took a set of stunning images of Mars during a fortuitous alignment that occurs every two years. The bright rust coloration of Mars is known for is due to iron-rich minerals.
14 April 2014, 02:01 AM ET
Monday features the launch of SpaceX's third contracted cargo mission to the International Space Station, a great view of a superbright Mars and a total eclipse of the moon overnight.
10 April 2014, 07:00 AM ET
The enormous collision occurred 3.26 billion years ago and involved an asteroid 23 to 36 miles across — four to six times wider than the dino-killing space rock. The impact created a crater about 300 miles wide, researchers said.
09 April 2014, 05:17 PM ET
This is not the first time that people have seen more in Curiosity's images than is actually there. In September 2012, for example, the rover photographed a landscape that appeared to contain a rodent crouching between two rocks.
08 April 2014, 05:41 PM ET
NASA’s Mars rover Curiosity has begun science operations in a new area of study nicknamed “the Kimberly” after the Western Australian region.
08 April 2014, 02:30 PM ET
Though UFO enthusiasts may beg to differ, mission team members say that a bright flash of light visible in two images taken by the Curiosity rover on April 2 and April 3 almost certainly has a perfectly ordinary explanation.
08 April 2014, 07:00 AM ET
Scientists have begun realizing that spaceflight can cause serious and perhaps permanent vision problems in astronauts. NASA is working hard to understand the issue, which could present a major hurdle to mounting manned missions to Mars.
08 April 2014, 07:00 AM ET
Mars and the sun are directly opposite each other in Earth's sky today, which is why the formation is known as an opposition of Mars. You can watch two live shows about the Mars opposition here on Space.com beginning at 7 p.m. EDT tonight.
07 April 2014, 05:27 PM ET
Planets abound in the night sky this month, which affords good views of Venus, Jupiter and Neptune. And on Tuesday (April 8), Mars will make its closest approach to Earth in more than six years.
07 April 2014, 03:14 PM ET
NASA should set up a clear set of ethical rules regarding the health of astronauts on long-duration spaceflights — such as a trip to Mars — in the near future, according to a panel of health and ethics experts.
06 April 2014, 08:36 AM ET
The 1-ton Curiosity rover trundled 98 feet (30 meters) on Wednesday (April 2), topping a small hill that affords a good view of the surrounding area, which the mission team has dubbed "the Kimberley," officials said.
04 April 2014, 08:09 PM ET
To survive on Mars, astronauts may need to rely on an usual diet.
04 April 2014, 04:15 PM ET
Mars will be exactly opposite the sun in the sky in a rare cosmic alignment set to take place Tuesday (April 8).
03 April 2014, 07:00 AM ET
Scientists and engineers at NASA's Ames Research Center in Moffett Field, Calif., are drawing up a low-cost mission concept that would send a robotic spacecraft to Phobos or Deimos, one of Mars' two tiny satellites.