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How to watch SpaceX bring NASA astronauts back to Earth this weekend – CNET

Bob Behnken and Doug Hurley made history getting to the space station aboard a Crew Dragon capsule. Weather permitting, they’re coming home soon.

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Astronauts Bob Behnken and Doug Hurley strapped into Crew Dragon prior to the launch scrub May 27.
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The SpaceX Crew Dragon Demo-2 mission has been smooth sailing so far for NASA’sCommercial Crew Program. Astronauts Bob Behnken and Doug Hurley successfully launched and rode to the International Space Station in late May, and now they’re ready to come back down as early as Sunday, if weather cooperates. 
The return to Earth takes some time, and NASA will be there along the way with a live…

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3D microscopy reveals how human sperm swim – Physics World – physicsworld.com

Researchers find that sperm swim in corkscrew motions to compensate for the asymmetry in their tails

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Human sperm swim in corkscrew motions to compensate for the asymmetry in their tails. That is according to researchers in the UK and Mexico who have used high-speed 3D microscopy to determine how sperm maintain their forward swimming direction. The results correct a long-standing misconception about the motions of sperm and could enable biologists to better understand human infertility.
In the 17th century, pioneering Dutch microbiologist Antoine van Leeuwenhoek became the first person to view …

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Australia’s small yet crucial part in the mission to find life on Mars – Brisbane Times

NASA’s latest mission to Mars pierced the clear blue sky over Florida last Thursday. On board: the rover Perseverance, packed with scientific instruments … and a tiny piece of Australian rock.

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“My life moved on,” Dr Rey said. On Sunday, he got a message from a colleague. ” ‘Hey Patrice, I forgot to tell you, but our sample is on the way to Mars.’ I almost fell off my chair.”
The rocks red colour indicates the presence of oxygen and life. NASA hopes to find the same on Mars.
“3.5 billion years ago there was water on Mars there was evidence of running rivers and lakes. If life had already emerged on Earth at that time, the chances are life could have also emerged on Mars,” said Dr Rey…

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The Moon, Saturn and Jupiter Are Aligning Tonight – It’s A Rare Chance To See All Three of Them So Close To One Another – Broadsheet

This is one celestial event that you’ll actually be able to see with the naked eye from anywhere in Australia. And you won’t have to stay up until stupid-o-clock to catch a glimpse of it.

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Three of the Milky Ways most famous celestial bodies are getting together tonight. The moon, Jupiter and Saturn are all usually quite easy to find on their own (especially the moon), but this evening theyll align in a close, bright, and easy-to-spot diagonal.
So Jupiter will be in the top left, and then youll get Saturn, and then youll get the moon, says Clare Kenyon, an astrophysicist at the University of Melbourne. Jupiter and Saturn will be the brightest things you can see near the moon. An…

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