Video: Watch 2 astronauts spacewalk today to prep solar arrays that will boost the space station's power supply

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Expedition 68 Flight Engineer Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA) is pictured in his Extravehicular Mobility Unit (EMU), or spacesuit, during a seven-hour and 21-minute spacewalk to install a modification kit on the International Space Station's starboard truss structure preparing the orbital lab for its next roll-out solar array.
Expedition 68 Flight Engineer Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA) i

A 45-year-old biotech CEO may have reduced his biological age by at least 5 years through a rigorous medical program that can cost up to $2 million a year, Bloomberg reported

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Bryan Johnson
Bryan Johnson, a 45-year-old biotech founder, hopes to rewind the clock of his body a few decades through a program he started, called Project Blueprint.

Courtesy Dustin Giallanza

See the rare green comet in pictures so you know what to look for in the sky

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green comet streaking across starry night sky with long white tail
Comet ZTF, as photographed on January 18, 2023.

Dan Bartlett

Billion-dollar startup plans to bring the dodo back from the dead, and claims it can also revive the woolly mammoth

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An artist illustration shows a white dodo looking towards the camera on a white background.
Collossal Biosciences aims to revive the long-extinct dodo using gene editing.

David Tipling/Education Images/Universal Images Group via Getty Images

A heart-shaped pendant linked to Henry VIII was dug up on an English farm, pointing to a more romantic side to the Tudor king

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Two gloved hands hold the pendant, showing the front of the heart-shaped locket.
This pendant is thought to be associated with Henry VIII. An amateur detectorist discovered the locket by chance in a field in England.

Dan Kitwood/Getty Images

Ghostly flying 'whirlpool' that appeared above Hawaii could be leftover SpaceX rocket fuel

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A blue spiral flies through the night sky on January 18. Photo captured by a National Astronomical Observatory of Japan camera.
A blue spiral flies through the night sky on January 18. Photo captured by a National Astronomical Observatory of Japan camera.

National Astronomical Observatory of Japan

SpaceX astronauts will receive the Congressional Space Medal of Honor

Engadget

Vice President Kamala Harris will today award the Congressional Space Medal of Honor for the first time since 2006. The recipients are Doug Hurley and Bob Behnken, who became the first astronauts to fly to space on a crewed SpaceX mission in 2020.

The Green Comet will be closest to earth on Feb 1. Here's the science behind its ghoulish glow.

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green comet streaking across starry night sky with long white tail
Comet ZTF, as photographed on January 18, 2023.

Dan Bartlett

Tyre Nichols' death has reignited the debate around police brutality. Here are 5 proven ways to reduce it - and 2 strategies that don't work.

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george floyd police brutality protest
Protesters rally as Philadelphia Police officers and Pennsylvania National Guard soldiers look on, June 1, 2020.

AP Photo/Matt Slocum

Princeton computer science professor says don't panic over 'bullshit generator' ChatGPT

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An image of a phone with ChatGPT and OpenAI's logo visible.
ChatGPT, a AI chat bot, has gone viral in the past two weeks.

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