NASA announces water on Mars

Thursday, October 1, 2015

Listen to this article

noicon

Audio file created from text revision dated 2015-10-11 and may not reflect subsequent edits to this report.

Audio Help / Audio Wikinews

Mars from the Viking Orbiter, 1980.
Image: NASA/USGS.

On Monday, NASA announced that signs of liquid water have been found on Mars. The Mars Reconnaissance Orbiter spacecraft found evidence of the liquid on the Martian surface, in long dark spots on the Red Planet thought to be formed because of water flow.

In a news conference, NASA's planetary science director, Jim Green said, "We now know Mars was once a planet very much like Earth with warm salty seas and fresh water lakes [...] but something has happened to Mars, it lost its water."

Water is thought to flow down slopes in the warm summer months and dry up as the temperature drops seasonally. Scientists have different theories about the water's origin, as perhaps from the Martian atmosphere or from ice below the surface.

In 2011, Lujendra Ojha proposed the theory of water on the Martian surface, after studying salt samples from Martian soil. The temperature of Mars is close to the freezing point of water, but the presence of salt lowers the freezing point. Alfred McEwen, professor of planetary geology at the University of Arizona, described the water as "briny". Moreover, the recurring slope lineae (RSL) on the surface of Mars are found to slide down the slope in the hotter season indicating the presence of water.

NASA's associate administrator John Grunsfeld said those observations gave a better picture about the planet's resources that could be helpful in the future. Grunsfeld tweeted Water on Mars, not just frozen. Is anything drinking it? Someday we wil find out on our #JourneyToMars.

To mark this discovery, Google created a doodle in which Mars is sipping water.

Have an opinion on this story? Share it!

Sister links

Water on Mars

Water on Mars

Sources

"Evidence of water found on Mars" — Google Doodle, September 29, 2015
Ian Sample. "Nasa scientists find evidence of flowing water on Mars" — The Guardian, September 28, 2015
Alyssa Newcomb. "Mars: NASA Reveals Red Planet Contains Both Frozen, Liquid Water" — ABC News (US), September 28, 2015
Ali Younes. "NASA: Water found on Mars" — Al Jazeera, September 28, 2015
John Grunsfeld. "Water on Mars, not just frozen. Is anything drinking it? Someday we will find out on our #JourneyToMars" — Twitter, September 28, 2015

Share this:

This page is archived, and is no longer publicly editable.

Articles presented on Wikinews reflect the specific time at which they were written and published, and do not attempt to encompass events or knowledge which occur or become known after their publication.

Got a correction? Add the template {{editprotected}} to the talk page along with your corrections, and it will be brought to the attention of the administrators.

Please note that due to our archival policy, we will not alter or update the content of articles that are archived, but will only accept requests to make grammatical and formatting corrections.

Note that some listed sources or external links may no longer be available online due to age.