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Up to three planets - potentially rocky like Earth - have been spotted around a star located relatively near our solar system - a planetary system offering astronomers intriguing possibilities in the search for signs of extraterrestrial life.

The planets orbit Gliese 887, a so-called red dwarf star half the sun’s mass located 11 light years from Earth - right in our backyard in cosmic terms, researchers said on Friday. A light year is the distance light travels in a year, 5.9 trillion miles (9.5 trillion km).

Only 12 other stars are closer to our solar system.

Laura van Holstein, a PhD student in Biological Anthropology at St John's College, University of Cambridge, and lead author of the research published today (March 18) in Proceedings of the Royal Society, discovered mammal subspecies play a more important role in evolution than previously thought.

Her research could now be used to predict which species conservationists should focus on protecting to stop them becoming endangered or extinct.

A species is a group of animals that can interbreed freely amongst themselves. Some species contain subspecies -- populations within a species that differ from each other by having different physical traits and their own breeding ranges. Northern giraffes have three subspecies that usually live in different locations to each other and red foxes have the most subspecies -- 45 known varieties -- spread all over the world. Humans have no subspecies.

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Scientists have discovered the oldest solid material ever found on Earth from a meteorite that fell in Australia about 50 years ago.

The material that the researchers examined are called presolar grains – or stardust – particles from a star that can eventually form new stars, along with planets, moons and meteorites.

While people around the world were celebrating the arrival of 2019, people at the Johns Hopkins Applied Physics Laboratory in Maryland were hard at work. Billions of miles away, the New Horizons probe was flying past Ultima Thule, a small object in the Kuiper Belt. By Tuesday morning, the hardware had sent back a status report that indicated the flyby went as planned, and New Horizons now has lots of data from Ultima Thule that it will slowly send back to Earth over the coming months.

While we don't yet have any of the data that will tell us details about this relic of the Solar System's formation, images taken during the approach solved one of the mysteries that had arisen as New Horizons closed in. But one of the key questions—is Ultima Thule one object or two?—remains unanswered.

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An American astronaut and Russian cosmonaut were forced to eject from an aborted launch to the International Space Station early Thursday and make an emergency landing.

NASA astronaut Nick Hague and Roscosmos cosmonaut Alexey Ovchinin were aboard the spacecraft when it launched at 4:40 a.m. EDT on a mission to the station. The duo blasted off from Kazakhstan's Baikonur Cosmodrome aboard the Russian Soyuz MS-10 spacecraft.

Moments after launch, the two were forced to eject from the spacecraft after they encountered trouble with a booster on the rocket.

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A mummified wolf pup and caribou believed to have walked Earth over 50,000 years ago were discovered with tissue and fur intact — a remarkable find, Canadian authorities say.

The caribou was found at the site of a 80,000-year-old volcanic ash bed and officials believe it's among the oldest mummified mammal tissue in the world, according to a release.

The head, two front limbs and torso of the caribou were intact. The wolf pup was found with a complete body.