Rafi Letzter
Rafi Letzter
Rafi joined Live Science in 2017. He has a bachelor's degree in journalism from Northwestern University’s Medill School of journalism. You can find his past science reporting at Inverse, Business Insider and Popular Science, and his past photojournalism on the Flash90 wire service and in the pages of The Courier Post of southern New Jersey.Source
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Did the universe's creator hide a message in the cosmos?

Did the universe's creator hide a message in the cosmos?

Live Science is supported by its audience. When you purchase through links on our site, we may earn an affiliate commission.Did the creator of the universe leave a hidden message in the cosmos for intelligent life? If so, scientists have yet to find it.A search for a message on "the most cosmic of all billboards, the Cosmic Microwave Background (CMB)," has failed, a new study finds. The CMB is the oldest light in the universe, visible across all of space. Its have been traveling since the first formed out of a haze of protons and electrons that filled the universe soon after the . They form...

December 8, 2020
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Meteor explodes over Vermont with the force of 440 pounds of TNT

Meteor explodes over Vermont with the force of 440 pounds of TNT

Live Science is supported by its audience. When you purchase through links on our site, we may earn an affiliate commission.A meteor streaked through the night sky over Vermont on Sunday (March 7), creating a spectacular light show and causing Earth-shaking booms as it burned through the atmosphere.The meteor's explosive passage through the atmosphere released the equivalent of 440 pounds (200 kilograms) of TNT, suggesting that the meteor was likely 10 pounds (4.5 kg) and 6 inches (15 centimeters) in diameter, according to .The space rock smacked into the atmosphere at about 42,000 mph...

March 8, 2021
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'Farfarout' is most distant object in our solar system. But it's not Planet Nine.

'Farfarout' is most distant object in our solar system. But it's not Planet Nine.

Live Science is supported by its audience. When you purchase through links on our site, we may earn an affiliate commission.This GIF shows the motion of Farfarout, highlighted, between Jan. 15 and Jan. 16 2018, as seen with the Subaru telescope.(Image: © Scott S. Sheppard/Carnegie Institution for Science)Astronomers have identified the most distant known object in our solar system —  a dwarf planet nicknamed Farfarout that orbits far beyond Pluto. This remote mini-planet swings so far away from the sun that from Farfarout's perspective Earth and Saturn look like neighbors. With an orbit...

February 11, 2021
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A giant black hole suddenly went dark, and no one knows why

A giant black hole suddenly went dark, and no one knows why

TrendingSpace is supported by its audience. When you purchase through links on our site, we may earn an affiliate commission.(Image: © Brian Christensen/Stocktrek Images)Beginning in 2018, one of the brightest lights in the sky went dark, and scientists still aren't sure why. The black hole responsible for creating the lights-out mystery lives in GRS 1915+105, a star system 36,000 light-years from Earth containing both a normal star and the second-heaviest known black hole in the Milky Way. That heavyweight is 10 to 18 times the mass of the sun and second in mass only to Sagittarius A* (or...

February 6, 2021
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Seas will likely rise even faster than worst-case scenarios predicted by climate models

Seas will likely rise even faster than worst-case scenarios predicted by climate models

Live Science is supported by its audience. When you purchase through links on our site, we may earn an affiliate commission.An abandoned boat sits in the water amid dead cypress trees in coastal waters and marsh August 26, 2019 in Venice, Louisiana, in a region already impacted by sea level rise.(Image: © Drew Angerer/Getty Images)Sea levels will probably rise faster than most climate models predict, according to a new study.In 2019, the Intergovernmental Panel on Climate Change (IPCC), a United Nations scientific body that reports on climate change, said that the global sea-level average...

February 4, 2021
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Chinese researchers to send an 'uncrackable' quantum message to space

Chinese researchers to send an 'uncrackable' quantum message to space

Live Science is supported by its audience. When you purchase through links on our site, we may earn an affiliate commission.An illustration shows the Micius satellite and the three ground stations with which it communicates.(Image: © University of Science and Technology of China)Uncrackable messages can now be sent through the air and will soon be beamed into space.Researchers at the University of Science and Technology in China (USTC) worked out in 2018 how to secretly share "quantum keys" between orbiting satellites and ground stations, as . That made the connection between the Chinese...

February 1, 2021
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'Sextuply-eclipsing sextuple star system' discovered whirling through the Milky Way

'Sextuply-eclipsing sextuple star system' discovered whirling through the Milky Way

Live Science is supported by its audience. When you purchase through links on our site, we may earn an affiliate commission.An illustration shows the Transiting Exoplanet Survey Satellite (TESS). Data from TESS has revealed a sextuple star system less than 2,000 light years from Earth.(Image: © NASA)Ever ridden a teacup ride at a state fair? If so, you might have a small taste of life in a whirling, twirling sextuply-eclipsing sextuple star system."Sextuply-eclipsing sextuple star system" is astronomer-speak for a system with six stars all orbiting each other and all regularly eclipsing one...

January 22, 2021
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NASA will soon fire up the most powerful rocket ever built

NASA will soon fire up the most powerful rocket ever built

Live Science is supported by its audience. When you purchase through links on our site, we may earn an affiliate commission.NASA plans to ignite the most powerful rocket it's ever built on Jan. 17 .It will be the first firing of the Space Launch System (SLS), the long-awaited (and delayed) rocket ship that NASA plans to use for non-commercial human space flight. It's the centerpiece of NASA's Artemis program, a crewed mission to land, in language NASA frequently uses, "the first woman and next man" on the moon. However, during this first ignition, only the liquid fuel engines at the core of...

January 10, 2021
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9 epic space discoveries you may have missed in 2020

9 epic space discoveries you may have missed in 2020

Medical discoveries dominated the news in 2020, but even under pandemic conditions, astronomers kept up their work. They hunted through radio waves for mystery signals, discovered new galaxies and even figured out which alien star systems might be able to detect Earth. Planets in the solar system emit radio waves, especially Jupiter with its intense magnetic fields. But no one had ever detected radio waves coming from a planet beyond the solar system until this year, when researchers picked up a signal from a gas giant in the Tau Boötes system, just 51 light years from Earth. That signal...

January 2, 2021
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Telescope lasers could give humanity an edge in war against space junk

Telescope lasers could give humanity an edge in war against space junk

Live Science is supported by its audience. When you purchase through links on our site, we may earn an affiliate commission.Telescope operators figured out years ago how to make the stars stop twinkling. Now, a team of Australian scientists wants to use the same technology to track space junk and blast it out of space.The problem is Earth's atmosphere: It's uneven and distorts light passing from space to , and Earth to space. That's a problem, because the nice twinkly effect Earth's atmosphere gives stars makes it difficult for ground-based telescopes to accurately observe the heavens. It's...

April 14, 2021
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