Science
NASA begins process of bringing new space telescope into focus
NASA on Wednesday began the painstaking months-long process of bringing its newly launched James Webb Space Telescope into focus, a mission that should be completed in time for the revolutionary eye in the sky to begin peering into the universe in early summer.
Mission control engineers at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, first send their initial commands to tiny motors called actuators, which slowly position and fine-tune the telescope’s primary mirror.
The primary mirror consists of 18 hexagonal segments of gold-coated beryllium metal and measures 21 feet 4 inches (6.5 m) in diameter—much larger than the 30-year-old light-collecting surface of Webb’s predecessor, the Hubble Space Telescope.
Within two weeks of Webb’s Dec. 25 launch, the 18 sections were folded together to fit into the cargo bay of the rocket that will send the telescope into space, and unfolded along with other structural components.
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Science
Nasa’s old map of Jupiter, which reminds many of dosa, has gone viral once more
Certain images or videos frequently resurface on the Internet, leaving people speechless. When those clips or pictures are shared again on one social media platform or another, they create a buzz. The National Aeronautics and Space Administration (Nasa) created and posted this image of a map of Jupiter online a few years ago. After being shared on Twitter, the image drew a lot of attention this time. And, as usual, the image made people think of dosa, a popular South Indian dish.
The image was shared by the Twitter account Latest in Space. “From the very bottom of Jupiter, I’m looking up. While tweeting the image, they wrote, “Seen by NASA Cassini.” The images from the Cassini spacecraft’s narrow-angle camera were used to create this out-of-this-world image, which is part of a coloured map series produced by the space agency.
The article was published a few days ago. The tweet has received nearly 20,000 likes since it was shared, and the number is growing. The tweet has been retweeted more than 2,000 times. Take a look at some of the comments to see how the image of Jupiter looks like dosa.
A Twitter user commented, “Looks like a designer dosa.” “When I rush to pick up a call, this is what happens to my dosa on the dosa pan,” one joked. “This is how my mother makes Dosa,” a third said. “Jupiter in the making,” wrote a fourth, along with a photo of someone preparing – you guessed it – dosa.
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