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Are we all aliens? Asteroid samples hint at existence of ancient watery world

NASA's Osiris-Rex spacecraft returned 122 grams (4 ounces) of dust and pebbles from the near-Earth asteroid Bennu

NASA's Osiris-Rex spacecraft returned 122 grams (4 ounces) of dust and pebbles from the near-Earth asteroid Bennu,(REUTERS)
Published on Jan 30, 2025 07:20 AM IST
AP |

The great defrost: Mridula Ramesh, on the perils of a melting Antarctica

It's been a rapid slide for the continent of ice, which was expanding until 2014. Mridula Ramesh on an ancient past, near future,and trade-offs to be made today

Sea ice reached a new low last year – the fourth new low here in seven years. The continent of ice is crumbling at its edges. One of these chunks is A23a (see aerial view above). The world’s largest iceberg – about four times the size of Delhi – is currently drifting and melting into the Southern Ocean. (Courtesy Ian Strachan / Eyos Expedition)
Updated on Mar 02, 2024 12:34 PM IST

Life on Earth seeded from outer space? New study suggests ‘strong evidence'

Scientists have previously found some or all of these bases in different asteroids that landed on Earth as meteorites. However, they could not be sure the chemicals came from outer space or were contaminated when they landed.

Carbonaceous rock samples retrieved from the asteroid Ryugu, that were subjected to chemical analysis by Hayabusa2 soluble organic matter (SOM) team members, led by Hiroshi Naraoka, Yoshinori Takano and Jason Dworkin.(JAXA via REUTERS)
Published on Mar 22, 2023 08:31 AM IST
AFP |

Scientists identify substance that may have sparked life on Earth

The scientists conducting the study are part of a Rutgers-led team called Evolution of Nanomachines in Geospheres and Microbial Ancestors (ENIGMA), which is part of the Astrobiology program at NASA. The researchers are seeking to understand how proteins evolved to become the predominant catalyst of life on Earth.

After sequences of experiments, researchers concluded the best candidate was Nickelback. (NASA / NOAA)
Published on Mar 11, 2023 07:28 PM IST
ANI | | Posted by Yagya Sharma

Researchers say meteorites could have paved way for life on Earth. Here's how

If the initial space debris had included carbonaceous chondrites a class of meteorite whose members contain significant amounts of water and small molecules, such as amino acids then it could have contributed to the evolution of life on Earth.

One scientific hypothesis is that meteorites delivered amino acids life's building blocks to our planet.(HT file photo)
Published on Dec 08, 2022 02:53 PM IST
ANI | | Posted by Nisha Anand
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