Science

Cosmic ‘Lighthouses’ That Beam Gamma Rays Could Reveal Gravitational Waves All Around Us

A team of astronomers have compiled 12.5 years of data from the Fermi Gammy-ray Space Telescope to form a gamma-ray pulsar timing array, a system of cosmic lighthouses that could help reveal ripples in spacetime. Since the first observation of gravitational waves in 2016, astronomers and astrophysicists have been trying to pin down the gravitational …

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Differences between the Moon’s near and far sides linked to colossal ancient impact

A new study reveals that an ancient collision on the Moon’s south pole changed patterns of convection in the lunar mantle, concentrating a suite of heat-producing elements on the nearside. Those elements played a role in creating the vast lunar mare visible from Earth. Credit: Matt Jones The face that the Moon shows to Earth …

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Melting ice caps may not shut down ocean current

Credit: CC0 Public Domain Most simulations of our climate’s future may be overly sensitive to Arctic ice melt as a cause of abrupt changes in ocean circulation, according to new research led by scientists at the University of Wisconsin–Madison. Climate scientists count the Atlantic Meridional Overturning Circulation (or AMOC) among the biggest tipping points on …

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Dark matter could be a cosmic relic from extra dimensions

Dark matter, the elusive substance that accounts for the majority of the mass in the universe, may be made up of massive particles called gravitons that first popped into existence in the first moment after the Big Bang. And these hypothetical particles might be cosmic refugees from extra dimensions, a new theory suggests. The researchers’ …

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What’s the tallest wave ever recorded on Earth?

Has massive wave breaks. (Image credit: Shutterstock) (opens in new tab) In July 1958, an 8.3-magnitude earthquake at the Fairweather Fault rocked Alaska’s southern coast. The ground-shaking event caused a massive landslide at nearby Lituya Bay, which triggered a devastating tsunami that ripped through the narrow body of water and killed five people. The colossal …

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Arriving at ISS, Israeli astronaut Stibbe gives station its first taste of Hebrew

A space capsule carrying four astronauts, including Israeli Eytan Stibbe, docked at the International Space Station Saturday in the first fully private mission to the station, and Stibbe and his fellow passengers entered the station. Speaking at a welcome ceremony aboard the station, Stibbe said a few words in Hebrew. “Welcome to the International Space …

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Ocean Underwater

5,500 New RNA Virus Species Discovered in the Ocean – Tracing the Origins of Viruses and the Origins of Life

Ocean Water Samples Yield Treasure Trove of RNA Virus Data Ocean water samples collected around the world have yielded a treasure trove of new data about[{” attribute=””>RNA viruses, expanding ecological research possibilities and reshaping our understanding of how these small but significant submicroscopic particles evolved. Combining machine-learning analyses with traditional evolutionary trees, an international team …

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Space station’s first all-private astronaut team welcomed aboard orbiting platform

April 9 (Reuters) – The first all-private team of astronauts ever launched to the International Space Station (ISS) were welcomed aboard the orbiting research platform on Saturday to begin a weeklong science mission hailed as a milestone in commercial spaceflight. Their arrival came about 21 hours after the four-man team representing Houston-based startup company Axiom …

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