Mars may be too small to retain enough water: Study
While Mars has no liquid water on its surface today, remote sensing studies and analyses of Martian meteorites dating back to the 1980s posit that Mars was once water-rich, compared to Earth
New dark energy may explain why Universe is expanding
According to cosmologists, the type of dark energy might have existed in the first 3,00,000 years after the Big Bang, Nature reported. A tentative first trace of this 'early dark energy' was detected in data collected between 2013 and 2016 by the Atacama Cosmology Telescope (ACT) in Chile, revealing two separate studies -- posted on the arXiv preprint server, meaning not yet peer-reviewed.
NASA's Ingenuity captures Mars rock feature in 3D
The mini-helicopter flew to the red planet on February 18 while being attached to the belly of NASA's Perseverance rover.
Coronavirus might have multiple animal origins: Study
The findings, posted on the virological.org discussion forum and not yet peer reviewed, may challenge the hypothesis that SARS-COV-2 escaped from a laboratory, Nature reported. The finding could be the "dagger into the heart" of the hypothesis that SARS-CoV-2 escaped from a lab, rather than originating from the wildlife trade, Robert Garry, a virologist at Tulane University in Louisiana.
Thousands of massive, ancient volcanic eruptions on Mars: NASA
Spewing water vapour, carbon dioxide, and sulphur dioxide into the air, these explosions tore through the Martian surface about 4 billion years ago, according to scientists' estimates, reported in the journal Geophysical Research Letters. "Each one of these eruptions would have had a significant climate impact -- maybe the released gas made the atmosphere thicker or blocked the Sun and made the atmosphere colder," said Patrick Whelley.
Astronomers capture best images yet of peculiar 'dog-bone' asteroid
The observations have allowed the team to constrain the 3D shape and mass of this peculiar asteroid, which resembles a dog bone, to a higher accuracy than ever before. Their research also provides clues as to how this asteroid and the two moons that orbit it formed. "Kleopatra is truly a unique body in our Solar System," said lead researcher Franck Marchis.
Oxygen therapy may put a brake on Alzheimer's: Study
The study, by scientists at Tel Aviv University in Israel, showed that breathing pure oxygen for some time in a pressurised -- or hyperbaric -- chamber can boost the functioning of the human brain. In animals, the therapy helped fight the build-up of brain plaque, the Times of Israel reported.
Perseverance's rock sample to give insight into Mars' history
Analysis of the rocks from which the Montdenier and Montagnac samples were taken show signs that they were in contact with water for a long period of time, boosting the case for ancient life on the Red Planet. aceIt looks like our first rocks reveal a potentially habitable sustained environment. It's a big deal that the water was there for a long time," said Ken Farley of Caltech.
'Will we see humans as machines?'
Welga Ramirez, executive bodyguard and ex-Special Forces, is about to retire early when her client is killed in front of her. It's 2095 and people don't usually die from violence. Humanity is entirely dependent on pills that not only help them stay alive but also allow them to compete with artificial intelligence in an increasingly competitive gig economy.
NASA confirms James Webb telescope launch in December
The agency set the new target launch date in coordination with Arianespace after Webb recently and successfully completed its rigorous testing regimen -- a major turning point for the mission, NASA said in a statement on Wednesday. The new date also follows French company Arianespace successfully launching an Ariane 5 rocket in late July and scheduling a launch that will precede Webb.