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No Signs of Alien Tech Found by SETI Scans of Our Interstellar Visitor 2I/Borisov
A mysterious comet identified last year as only the second-ever known interstellar object in our Solar System inevitably prompted some big scientific questions. Chief among them: what, if anything, can it tell us about the hypothesised existence of extraterrestrial intelligence out there in space?
The news, revealed by SETI (search for extraterrestrial intelligence) scientists at the annual meeting of the American Association for the Advancement of Science (AAAS) this month, highlights the almost overwhelming amount of unknowns and variables that challenge SETI researchers.
New books: Madeleine L'Engle short stories, Sopan Deb memoir
In search of something good to read? USA TODAY's Barbara VanDenburgh scopes out the shelves for this week's hottest new book releases.
1. "Missed Translations: Meeting the Immigrant Parents Who Raised Me," by Sopan Deb (Dey Street, nonfiction, on sale April 21)
The buzz: "A sympathetic portrait of South Asians who are neither crazy and rich nor humorless nerds," says Kirkus Reviews.
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The buzz: "So fierce, ambitious, and far-reaching that it makes most other mysteries seem like so many petit fours," says Kirkus Reviews.
Star's floral orbit is a victory for Einstein | News | The Times
Astronomers have tracked a star as it pirouettes around the supermassive black hole at the centre of our galaxy to confirm a prediction made by Albert Einstein more than a century ago.
Using precise measurements gathered over nearly 30 years, scientists have shown that the orbit of the star, known as S2, is not shaped like an ellipse as predicted by Isaac Newton's gravity theory.
Instead its course around Sagittarius A*, the behemoth black hole that lurks at the centre of the Milky Way, would form a rosette-like pattern if tracked from above. The breakthrough bolsters the evidence that Sagittarius A*, which is about 26,000 light years away, is a supermassive black hole, with about four million times the mass of the sun. As physicists
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