Dark streaks on Mars are evidence of liquid water on the red planet, NASA said in a groundbreaking announcement Monday, fueling further speculation that if life ever existed on Mars, it could persist to today. Satellite images captured the telltale signs of downhill flowing water on what appear to be slopes associated with salt deposits — salt being key, as it would keep water from freezing or turning to vapor in Mars' air.
"There pretty much has to have been liquid water recently present to produce the hydrated salt," Alfred S. McEwen, the principal investigator of images from NASA's Mars Reconnaissance Orbiter, told The New York Times.
The Week
Escape your echo chamber. Get the facts behind the news, plus analysis from multiple perspectives.
Sign up for The Week's Free Newsletters
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
-
‘The worry is far from fanciful’Instant Opinion Opinion, comment and editorials of the day
-
How are Americans bracing for the end of SNAP?TODAY'S BIG QUESTION Millions depend on supplemental federal food funds that are set to expire this month, as the government shutdown begins to be acutely felt
-
Book review: ‘Joyride: A Memoir’Feature A journalist’s story of how she chased and accomplished her dreams
-
Nobody seems surprised Wagner's Prigozhin died under suspicious circumstancesSpeed Read
-
Western mountain climbers allegedly left Pakistani porter to die on K2Speed Read
-
'Circular saw blades' divide controversial Rio Grande buoys installed by Texas governorSpeed Read
-
Los Angeles city workers stage 1-day walkout over labor conditionsSpeed Read
-
Mega Millions jackpot climbs to an estimated $1.55 billionSpeed Read
-
Bangladesh dealing with worst dengue fever outbreak on recordSpeed Read
-
Glacial outburst flooding in Juneau destroys homesSpeed Read
-
Scotland seeking 'monster hunters' to search for fabled Loch Ness creatureSpeed Read
