Scientists say that more than 3bn years ago, Mars not only had lakes and rivers but oceans on its surface. However, as the planet lost its atmosphere, these bodies disappeared. All that is visible today is permafrostice at the planet's poles.
While it is thought some of the water was lost to space, research has suggested that is not the full story, and that water could have been incorporated into minerals, buried as ice, or even exist in liquid form deep within the planet's crust.
Now scientists say their calculations suggest vast quantities of liquid water could be found trapped within rocks about 11.5-20km (7-12.5 miles) below the Martian surface.
"Our liquid water estimate is more than the water volumes proposed to have filled possible ancient Martian oceans," said Dr Vashan Wright, a co-author of the study from Scripps Institution of Oceanography at the University of California San Diego.
ãã®èšäºã¯ The Guardian ã® August 13, 2024 çã«æ²èŒãããŠããŸãã
7 æ¥éã® Magzter GOLD ç¡æãã©ã€ã¢ã«ãéå§ããŠãäœåãã®å³éžããããã¬ãã¢ã ã¹ããŒãªãŒã9,000 以äžã®éèªãæ°èã«ã¢ã¯ã»ã¹ããŠãã ããã
ãã§ã«è³Œèªè ã§ã ?  ãµã€ã³ã€ã³
ãã®èšäºã¯ The Guardian ã® August 13, 2024 çã«æ²èŒãããŠããŸãã
7 æ¥éã® Magzter GOLD ç¡æãã©ã€ã¢ã«ãéå§ããŠãäœåãã®å³éžããããã¬ãã¢ã ã¹ããŒãªãŒã9,000 以äžã®éèªãæ°èã«ã¢ã¯ã»ã¹ããŠãã ããã
ãã§ã«è³Œèªè ã§ã? ãµã€ã³ã€ã³
"They can't get away scot-free' EFL wants to charge Leicester with PSR breach if relegated
The English Football League wants to charge Leicester over the alleged breach of profitability and sustainability rules (PSR) the Premier League was blocked from pursuing this month, if the club are relegated.
Rodgersâ star on rise again as rampant Celtic extend perfect start
This proved a modern day Celtic Park rarity.
City off-colour as GÃŒndogan's late misses hand dogged Inter a point
Manchester City know only too well how tough a nut Inter are to crack.
Significant ankle damage rules Ãdegaard out 'for a while'
Mikel Arteta has confirmed that Martin Ãdegaard has damaged ankle ligaments and will be sidelined \"for a while\" after the Arsenal captain was injured on international duty.
Salvatore Schillaci, 1964-2024 Italy mourns its goalscoring hero from 1990 World Cup
Tributes have been paid to Salvatore Schillaci after the former Italy forward died at the age of 59.
Captain Brook hands rebooted England licence to entertain
In one sense the five-match ODI series between England and Australia that starts in Nottingham today is slightly lacking in wider context.
'Any free time, I'll go fishing.My missus thinks I'm a bit weird'
Ollie Sleightholme, who is geared up for title defence, explains how angling relieves the pressures Northampton's
Itoje rejects Jonesâ claims he is not suited to captaincy
Maro Itoje has rejected claims by the former England head coach Eddie Jones that he is \"very inward-looking\" and not suited to Test captaincy, after being unveiled as Saracens' skipper.
Floods and tears Worcestershire dig deep to shine despite adversity and tragedy
Somerset could still win their first County Championship title, while Surrey remain on for the three-peat.
Remote working Like it or loathe it, WFH looks like it is here to stay
Four years ago when the world of work was upended by the Covid pandemic, confident were made predictions that a permanent shift in remote working would follow the removal of lockdown restrictions.