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The Missing Link to Snowball Earth Has Finally Surfaced
1 day ago · Earth iced over during the Cryogenian Period, but life on the planet survived. (NASA illustration) Around 700 million years ago, the Earth cooled so much that scientists believe massive ice sheets encased the entire planet like a giant snowball. This global deep freeze, known as Snowball Earth, endured for tens of millions of years.
Scientists Slowed Down Light by 10,000 Times in an Experiment
Based on the results obtained by the researchers, light can be slowed down by more than 10,000 times in this system. At the same time, the light loss is reduced by more than five times compared with other comparable methods. Key to the new approach is the way that the tiniest building blocks of the metasurface – known as meta-atoms – are ...
Fusion Breakthrough: 6 Minutes of Plasma Sets New Reactor Record
May 7, 2024 · The ultimate goal is to sustain a super-hot plasma for many hours, but 6 minutes is a new world record for a device like WEST. Other nuclear reactors similar to WEST have created hotter plasmas, but they haven't lasted as long. WEST is what's called a tokamak. It's a donut-shaped fusion reactor the size of an 8-by-8-foot room with 8-foot-tall ...
Scientists Reveal How Much Sleep You Need For 'Successful Aging'
4 days ago · Chances of successful aging was significantly greater among the long stable and normal stable groups (17.1 percent and 18.1 percent respectively) compared to those in the decreasing (9.9 percent), increasing (10.6 percent), and short stable (8.8 percent) groups.. Successful aging by sleep pattern. (Tian et al., BMC Public Health, 2024) "Relative to participants with the normal stable sleep ...
Scientists Discover How Complex Molecules May Have Stabilized …
Highly reactive complex molecules finding some sort of stability was a necessary step towards life getting started on Earth. Scientists think they've just discovered how these first began to stay intact and spark the journey towards organisms. We haven't been able to explain how the simple molecules that would've been floating around in the ...
Scientists More Hopeful Than Ever That Perseverance Has Already …
Jan 29, 2024 · Scientists strongly suspected the Jezero Crater once contained a delta system, as its surface holds the telltale signs of a dried-out lake bed, fed by an ancient river. That's why a Mars rover was sent to investigate the crater in February of 2021. Now that researchers can peer beneath Jezero's dusty exterior, they are more excited than ever by ...
NASA: We'd Have 30 Minutes' Warning Before a Killer Solar Storm …
Oct 13, 2023 · NASA: We'd Have 30 Minutes' Warning Before a Killer Solar Storm Hits Earth. Space 13 October 2023. By ANDY TOMASWICK, Universe Today. A solar flare and a burst of solar material erupting out into space. (NASA/SDO) We've touched on the hazards of solar storms plenty of times in the past. We've also recently started reporting even more stories ...