The Milky Way is warped and twisted, not flat

From: BBC NEWS

Our galaxy, the Milky Way, is “warped and twisted” and not flat as previously thought, new research shows.

Analysis of the brightest stars in the galaxy shows that they do not lie on a flat plane as shown in academic texts and popular science books.

Astronomers from Warsaw University speculate that it might have been bent out of shape by past interactions with nearby galaxies.

The new three dimensional map has been published in the journal Science.

The popular picture of the Milky Way as a flat disc is based on the observation of 2.5 million stars out of a possible 2.5 billion. The artists’ impressions are therefore rough approximations of the truer shape of our galaxy, according to Dr Dorota Skowron of Warsaw University.

“The internal structure and history of the Milky Way is still far from being understood, in part because it is extremely difficult to measure distances to stars at the outer regions of our galaxy,” she said.

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NASA Launches Mission to ‘Touch the Sun”. Parker Solar Probe

Original story via BBC NEWS

US space agency Nasa has launched its mission to send a satellite closer to the Sun than any before.

The Parker Solar Probe rocket lifted off from Cape Canaveral, Florida.

The probe is set to become the fastest-moving manmade object in history. Its data promises to crack longstanding mysteries about the Sun’s behaviour.

It is the first space craft to be named after a living person – astrophysicist Eugene Parker, 91, who first described solar wind in 1958.

“Wow, here we go! We’re in for some learning over the next several years,” he said after watching the lift-off from the scene. The University of Chicago professor said he had been biting his nails in anticipation.

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