Star Power

Scientists Puzzled by Star That Appears to Be Blinking on and Off

Okay, that's a new one.

Jun 11 by Jon Christian
Casey Horner via Unsplash / Futurism

There are a lot of stars in the universe — and while there are many different types, pretty much all of them shine consistently.

That’s why scientists were so puzzled to discover an “exceptionally rare” star, located toward the center of our own galaxy, that appears to be blinking on and off.

The star in question, which is 100 times the size of our own Sun and which has been dubbed VVV-WIT-08 — the “WIT” stands, charmingly, for “what-is-this” — didn’t quite disappear, but its brightness decreased by a factor of 30, rendering it all but invisible.

“Occasionally we find variable stars that don’t fit into any established category, which we call ‘what-is-this?’, or ‘WIT’ objects,” said University of Hertfordshire researcher Philip Lucas, one of the discoverers of the strange star, in a press blurb. “We really don’t know how these blinking giants came to be.”

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The researchers are considering numerous possibilities that could explain the blinking star. One is that something huge and dark drifted between our telescope and the star, though the astronomers say that’s statistically unlikely. Another is that a planet orbiting the star, surrounded by a huge dust cloud, periodically blocks it out almost entirely. That second possibility wouldn’t be entirely unheard of, the researchers point out, although the handful of other stars believed to be displaying similar behavior dimmed much less during the blockage.

The big takeaway for now? The universe holds a seemingly bottomless supply of cosmic surprises.

READ MORE: Astronomers spot a ‘blinking giant’ near the centre of the Galaxy [University of Cambridge]

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