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Earth's Magnetic Field Flipped 42,000 Years Ago. The Consequences Were Dramatic

According to radiocarbon preserved in ancient tree rings, several centuries' worth of climate breakdown, mass extinctions, and even changes in human behaviour can be directly linked to the last time Earth's magnetic field changed its polarity.

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Perseverance Team Works on Jet-Lag Inducing 'Mars Time' For The Mission

At NASA, the team of scientists and engineers behind the Perseverance surface operations have to work around the robot's schedule.
That means about 350 people will be keeping "Mars time" for the next three months – shifting their workdays 40 minutes later every day.


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Tired? Here's What Happens to The Body And Brain After Pulling an All-Nighter

There are times when it's unavoidable - a dissertation is due, a family member is in the emergency room, it's make-or-break for your company - but you should be aware of just how damaging pulling an all-nighter can be for your body.
Neuroscientists from Norway looked closely at the potential repercussions on our health, and it's not pretty
.

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Don't Suffer in The Cold? Turns Out There's a Genetic Mutation For That

Most of us living on planet Earth have to make it through some amount of cold weather for at least part of the year, and new research has identified a specific genetic mutation that makes a fifth of us more resilient to cold conditions.

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Perseverance Rover’s Descent and Touchdown on Mars

NASA's Mars 2020 Perseverance mission captured thrilling footage of its rover landing in Mars' Jezero Crater on Feb. 18, 2021. The real footage in this video was captured by several cameras that are part of the rover's entry, descent, and landing suite. The views include a camera looking down from the spacecraft's descent stage (a kind of rocket-powered jet pack that helps fly the rover to its landing site), a camera on the rover looking up at the descent stage, a camera on the top of the aeroshell (a capsule protecting the rover) looking up at that parachute, and a camera on the bottom of the rover looking down at the Martian surface.

The audio embedded in the video comes from the mission control call-outs during entry, descent, and landing.

Video (NASA) | Stream in 4K
@EverythingScience | #Mars2020
Navcam View of Perseverance’s Rover Deck

The Navigation Cameras, or Navcams, aboard NASA’s Perseverance Mars rover captured this view of the rover’s deck on Feb. 20, 2021. This view provides a good look at PIXL (the Planetary Instrument for X-ray Lithochemistry), one of the instruments on the rover’s stowed arm.

Photo | #Mars2020
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Perseverance and Mars 2020 Spacecraft Components on the Surface

This first image of NASA’s Perseverance Rover on the surface of Mars from the High Resolution Imaging Experiment (HiRISE) camera aboard NASA’s Mars Reconnaissance Orbiter (MRO) shows the many parts of the Mars 2020 mission landing system that got the rover safely on the ground. The image was taken on Feb. 19, 2021.

The rover itself sits at the center of a blast pattern created by the hovering descent stage that lowered it there using the sky crane maneuver. The descent stage flew off to crash at a safe distance, creating a V-shaped debris pattern that points back toward the rover. Earlier in the landing sequence, Perseverance jettisoned its heat shield and parachute, which can be seen on the surface in the separate locations illustrated.

Photo | #Mars2020
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NASA’s Mars Perseverance Rover Provides First Audio Recording of Red Planet

A microphone attached to the rover did not collect usable data during the descent, but the commercial off-the-shelf device survived the highly dynamic descent to the surface and obtained sounds from Jezero Crater on Feb. 20. About 10 seconds into the 60-second recording, a Martian breeze is audible for a few seconds, as are mechanical sounds of the rover operating on the surface.

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Recording without rover noises filtered out
Audio | #Mars2020
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Russia Alerted The WHO to The World's First Case of H5N8 Avian Flu in Humans

Russia said Saturday that its scientists had detected the world's first case of transmission of the H5N8 strain of avian flu from birds to humans and had alerted the World Health Organization.

While the highly contagious strain H5N8 is lethal for birds, it had never before been reported to have spread to humans.
Popova praised "the important scientific discovery", saying "time will tell" if the virus can further mutate.

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