10 December 2013, 05:00 PM ET
As a Canadian, I'm supposed to be used to extremes. I've commuted across the city many times in snowstorms, skated on an outdoor canal in blistering cold and played soccer in the humid soup of 104 degrees Fahrenheit (40 degrees Celsius).
10 December 2013, 01:00 PM ET
Dark streaks that are seasonally observed on Martian slopes near the equator could indicate the presence of salt water on Mars that melts and evaporates during warmer months on the Red Planet, scientists say.
10 December 2013, 11:00 AM ET
Life on Earth or Mars could have been brought to the moons of Jupiter or Saturn on rocks blasted off those planets, researchers say.
10 December 2013, 10:00 AM ET
The private Mars One colony project
09 December 2013, 12:01 PM ET
NASA's Curiosity rover has found evidence of an ancient Martian lake that could have supported life for perhaps millions of years. This lake likely existed 3.7 billion years ago, suggesting that Mars was habitable more recently than thought.
09 December 2013, 12:01 PM ET
A mission consisting of a 180-day cruise to Mars, a 500-day stay on the Red Planet and a 180-day return flight to Earth would expose astronauts to a cumulative radiation dose of about 1.01 sieverts, Curiosity's measurements suggest.
09 December 2013, 11:46 AM ET
NASA's Mars rover, Curiosity, discovered that the Gale Crater once harbored an ancient lake theoretically capable of hosting microbes.
09 December 2013, 11:33 AM ET
Data from the Mars Advanced Radar for Subsurface and Ionospheric Sounding instrument, MARSIS. aboard ESA's Mars Express has been used to create this animation of the Red Planets north pole. The ice cap is about 1000km in diameter (621 miles).
04 December 2013, 06:14 PM ET
Soon, we'll know who among the applicants on a one-way trip to Mars makes it into the second round. It's a one-way ticket, but not to worry: you’ll live there longer than back home on Earth. After all, on Mars you can’t get hit by a car. One thing is cert
04 December 2013, 12:12 PM ET
Venus shines its brightest at 4.9 magnitude this month, the Geminid Meteor Shower peaks in mid December and more!. In the market for a telescope? - Click the blue 'SHOP' link above.
03 December 2013, 12:57 PM ET
Want to know where to find Venus and Jupiter in the morning or the double star in Cassiopeia. Check out the Hubblesite's latest guide to the best places to look in the night sky. Telescopes are just one click away - Click the blue 'SHOP' link above.
02 December 2013, 04:08 PM ET
India's first robotic Mars probe set sail for the Red Planet Saturday with a vital rocket burn to catapult the spacecraft out of the realm of Earth's gravity and into interplanetary space.
27 November 2013, 07:44 AM ET
A number of organizations, both public and private, are drawing up plans to send astronauts toward the Red Planet, whose allure as an otherworldly destination and potential host of alien life has beckoned scientists and dreamers for hundreds of years.
26 November 2013, 04:37 PM ET
The crescent moon and Mars are visible close together just above the eastern horizon on these late November mornings. The Red Planet is dim now but will brighten considerably by next spring, when it will be much closer to Earth.
26 November 2013, 07:46 AM ET
The 1-ton Curiosity rover resumed science operations on Saturday (Nov. 23), six days after mission engineers noticed an odd voltage change and stood the robot down to investigate.
25 November 2013, 05:49 PM ET
With the second spacecraft this month now on its way to Mars, you could be forgiven for thinking we’ve forgotten that there is a number of other planets in our solar system.
22 November 2013, 12:40 PM ET
Though no Mars sample-return mission is firmly on the books, the European Space Agency has supported the development of a proof-of-concept container built to keep Martian samples safe as they journey from their home world to Earth.
21 November 2013, 07:12 PM ET
NASA's Mars rover Curiosity has stopped gathering data for a few days while engineers investigate an electrical problem that cropped up on Sunday. The suspected culprit is a "soft short," a sort of electrical leak through partially conductive material.
21 November 2013, 06:00 AM ET
The nonprofit Inspiration Mars Foundation aims to partner with NASA to send two astronauts on a flyby mission to the Red Planet in 2018. This has little chance of happening unless Congress and the White House approve the mission in the next few months.
20 November 2013, 03:36 PM ET
Inspiration Mars — which is led by multimillionaire Dennis Tito, the world's first space tourist — hopes to partner with NASA, using some of the space agency's equipment and an infusion of federal money to get off the launchpad by early January 2018.
20 November 2013, 01:01 PM ET
The Mars meteorite NWA 7533 is 4.4 billion years old and contains evidence of long-ago asteroid strikes, suggesting that the rock came from the Red Planet's ancient and cratered southern highlands, researchers said.
19 November 2013, 02:21 PM ET
NASA's Mars rover Curiosity is headed for a cluster of strange buttes that have been newly named in honor of Bruce Murray, a pioneer of planetary geology, who died earlier this year.
19 November 2013, 02:12 PM ET
This beautiful space wallpaper shows the United Launch Alliance Atlas V rocket with NASA’s Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft onboard at the Cape Canaveral Air Force Station Space Launch Complex 41, on Nov. 17.
19 November 2013, 07:01 AM ET
VASIMR technology, which has been in development for 25 years, could dramatically cut travel times to Mars, clean up space junk and deflect dangerous asteroids, among other things, advocates say.
18 November 2013, 06:20 PM ET
Scientists and NASA officials are euphoric today (Nov. 18) after the smooth launch of the space agency's MAVEN Mars probe, which is now streaking toward a date with the Red Planet in September 2014.
18 November 2013, 01:32 PM ET
NASA's newest Mars probe is officially on its way to investigate longstanding mysteries of the Red Planet.
18 November 2013, 01:30 PM ET
NASA's MAVEN mission — the Mars Atmosphere and Volatile EvolutioN orbiter — will launch on Nov. 18, 2013. See launch photos for the historic MAVEN mission to Mars here.
18 November 2013, 11:00 AM ET
NASA's next Mars probe is scheduled to launch to the Red Planet today (Nov. 18), and you can watch it live online right now.
18 November 2013, 08:29 AM ET
A new NASA probe is about to begin its 10-month trip to Mars.
18 November 2013, 07:00 AM ET
NASA plans to launch its Maven Mars orbiter Monday, kicking off a mission that differs from the space agency's previous Red Planet efforts. Here's a look back at the discoveries made by the spacecraft that have circled Mars over the last 40 years.
18 November 2013, 12:00 AM ET
A NASA probe is scheduled to launch to Mars today (Nov. 18), and you can watch it live online.
17 November 2013, 10:00 AM ET
Earlier robotic probes and rovers sent to Mars were designed to investigate the surface of the planet, but the space agency's Mars Atmosphere and Volatile Evolution spacecraft (MAVEN) is built for a different purpose.
17 November 2013, 07:01 AM ET
NASA's MAVEN spacecraft is scheduled to blast off from Florida's Cape Canaveral Air Force Station on Monday. MAVEN will study the Red Planet from orbit, seeking to understand how Mars lost most of its atmosphere long ago.
16 November 2013, 12:57 PM ET
Earlier today (Nov. 16) the United Launch Alliance rocket housing the space agency's Mars Atmosphere and Volatile Evolution spacecraft (MAVEN) rolled out onto the pad in preparation for the launch.
16 November 2013, 07:01 AM ET
MAVEN will make detailed measurements of Mars' atmosphere from orbit, helping scientists understand how Mars' climate has changed so dramatically over the last few billion years. Here are some key facts to keep in mind about MAVEN and its mission.
16 November 2013, 02:59 AM ET
NASA's Mars probe is expected to study the atmosphere of the Red Planet in amazing new detail.