Comet Passing is “Space Mission in Reverse”
There is plenty of activity in the night sky this weekend. In addition to the Geminid meteor shower, scientists say one of the brightest comets of the year will pass overhead. The Comet 46p/Wirtanen will be about 7 million miles away, which is close. In fact, it is one of the closest comets to pass by earth in recent times. Auburn University astrophysicist Dennis Bodewits says it is a rare sight.
“Comets are spectacular,” Bodewits says. “Not only are they amazing to see in the sky, but they’re also leftovers from the time when our solar system was formed.”
With this comet coming so close to earth, it is an opportunity for scientists to learn more about it. Bodewits will use three of NASA’s state of the art telescopes to zoom in on the comet and study its features. He is looking for more information about what it is made of and the activity of the gases around it.
“We call it a space mission in reverse,” Bodewits says. “Rather than flying to a comet and study it, this comet flies to us.”
If the weather is clear, Bodewits says the best view will be Sunday night. From a dark spot, the comet should be visible with the naked eye, but he recommends using binoculars or a telescope. Look for the Orion constellation and follow the arrow.
The Winter Olympics gets 8 new events, including its first new sport in decades
Ski mountaineering will make its Olympic debut this year, the first winter sport to do so since 2002. Skeleton, luge, ski jumping and moguls are also getting new events.
Team USA settles in to athletes’ villages, ‘smash’ pizzas
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As Trump reshapes foreign policy, China moves to limit risks, reap gains
President Trump's focus overseas may spare China for now, but Beijing still worries that his "America First" rhetoric hasn't softened what it calls U.S. "military adventurism."
Searching for dinosaur secrets in crocodile bones
Until now, estimating how old a dinosaur was when it died has been a fairly simple process: Count up the growth rings in the fossilized bones. But new research into some of dinosaurs' living relatives, like crocodiles, suggests that this method may not always work.
How the new dietary guidelines could impact school meals
Cutting back on ready-to-eat meals won't be easy, and whole milk may make a comeback. One thing that's certain: It'll be a while before the new guidelines trickle down to schools.
Poll: Two-thirds of Americans say ICE has ‘gone too far’ in immigration enforcement
A new NPR/PBS News/Marist poll finds a jump in disapproval of the agency among Democrats and independents, but Republicans are standing by ICE and the president.
