Clues from Canadian rocks formed billions of year ago reveal a previously unknown loss of life even greater than that of the mass extinction of the dinosaurs 65 million years ago, when Earth lost nearly three-quarters of ...
Earth Sciences
Aug 29, 2019
5
1957
Two hundred fifty-two million years ago, much of life on planet Earth was dying.
Earth Sciences
Aug 2, 2021
11
2742
SpaceX is often in the headlines; unfortunately, it is not always good news. On 18 November we saw the second of the Starship and SuperHeavy booster get off the launchpad successfully; it failed before reaching orbit. In ...
Space Exploration
Jan 23, 2024
1
22
Low oxygen conditions that pose a significant threat to marine life are widespread and increasing in coastal Pacific Northwest ocean waters as the climate warms, a new study shows.
Environment
Mar 20, 2024
3
351
In the search for life on other planets, the presence of oxygen in a planet's atmosphere is one potential sign of biological activity that might be detected by future telescopes. A new study, however, describes several scenarios ...
Astrobiology
Apr 13, 2021
2
5705
Is there oxygen on Mars? Technically yes, but it's nothing like the amount we have on Earth. So breathing is out of the question. However, there is a lot of carbon dioxide (CO2) on Mars.
Space Exploration
Oct 4, 2021
1
148
How did life survive the most severe ice age? A McGill University-led research team has found the first direct evidence that glacial meltwater provided a crucial lifeline to eukaryotes during Snowball Earth, when the oceans ...
Earth Sciences
Dec 2, 2019
8
727
The chances of being struck by lightning are less than one in a million, but those odds shortened considerably this month when more than 4.2 million lightning strikes were recorded in every Australian state and territory ...
General Physics
Nov 24, 2022
3
466
Scientists have built tiny droplet-based microbial factories that produce hydrogen, instead of oxygen, when exposed to daylight in air.
Materials Science
Nov 25, 2020
4
4238
Smashed on toast, creamed in guacamole or blended into salad dressing, avocados always seem to be popular. However, the fruits are notoriously finicky, going from pale green and firm to brown and mushy in the blink of an ...
Biochemistry
May 11, 2023
0
207
