Tabby's Star | EarthSky

Could a melting exomoon explain Tabby’s Star?

This star undergoes a long-term dimming that's so mysterious it was, at one time, proposed as possible evidence of an alien culture. Now, scientists say, a disk of debris - torn from a melting exomoon - might explain Tabby's Star.

Is the Random Transiter weirder than Tabby’s Star?

Move over, Tabby's Star. The Random Transiter may now be the weirdest star in the galaxy. Kepler data revealed 28 transits in front of this star in 87 days. What caused them? Multiple planets? A disintegrating planet? Alien megastructures?

Large white star with long dark jets of material in front of it and another star in the distance.

Have astronomers found another Tabby’s Star?

Remember when astronomers found Tabby's Star and said they'd never seen anything like it? Now there's another one ... maybe.

No alien megastructure for Tabby’s Star

This star’s odd, sporadic dimmings and brightenings caused speculation about vast structures built by alien civilizations. But a crowd-funded observing campaign led to a different conclusion.

Is dust what’s dimming Tabby’s Star?

Astronomers say they've found a smoking gun that rules out the idea of an energy-harvesting megastructure or Dyson sphere - built by an alien civilization - surrounding Tabby's Star.

Astronomers to observe Tabby’s Star

Observations begin tonight with the Green Bank radio telescope. Astronomers are seeking evidence of an extraterrestrial civilization.

Tabby’s Star: More weirdness

Some astronomers think this star may have an alien megastructure - an energy-gathering Dyson sphere - around it. Here's a glimpse of the controversy.

Help astronomers observe Tabby’s Star

They're using Kickstarter to raise funds needed to unravel one of astronomy's biggest mysteries. Is the star KIC 8462852 surrounded by an alien megastructure?

News about mystery star KIC 8462852 aka Tabby’s Star

Alien megastructures - aka Dyson spheres - around a star 1,500 light-years away? Astronomers struggle to explain the most mysterious star in the universe.

Artist's concept of a bright object, a star, surrounded by giant metal arches.

A Dyson sphere harvests the energy of stars

A Dyson sphere is a megastructure that could theoretically harvest all the energy of a star and supply an advanced alien civilization.

Red sphere with large gray oval partly in front of it with brightness graph.

Huge and opaque ‘something’ dims a giant star

What do astronomers do when something dims a giant star, and they can't figure out what it is? A new study raises more questions than answers.

Success! Mystery star to be monitored

Astronomers have raised $100,000 via Kickstarter to observe KIC 8462852, or Tabby’s Star, sometimes called the most mysterious star in the universe.

Mysterious dusty object baffles astronomers

Astronomers have found a mysterious dusty object orbiting a star 2,300 light-years from Earth. It's emitting large amounts of dust, yet remaining intact.

Breakthrough Listen and TESS team up for SETI

Will we ever hear from an alien civilization? Will we hear from one in our lifetimes? Now 2 powerhouses in the world of astronomy have teamed up to optimize the chances of a successful search for extraterrestrial intelligence.

Breakthrough Listen’s new search for alien lasers

For the last few decades, the search for extraterrestrial intelligence has focused on detecting radio signals. But a new collaboration between Breakthrough Listen and VERITAS will focus on looking for laser-like flashes of light.

NASA back in the search for alien technosignatures

After some prompting by Congress, NASA is again getting involved in SETI. Last week, it held a Technosignatures Workshop in Houston, exploring new ways scientists could seek intelligent aliens.

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Could a melting exomoon explain Tabby’s Star?

Is the Random Transiter weirder than Tabby’s Star?

Have astronomers found another Tabby’s Star?

No alien megastructure for Tabby’s Star

Is dust what’s dimming Tabby’s Star?

Astronomers to observe Tabby’s Star

Tabby’s Star: More weirdness

Help astronomers observe Tabby’s Star

News about mystery star KIC 8462852 aka Tabby’s Star

A Dyson sphere harvests the energy of stars

Huge and opaque ‘something’ dims a giant star

Success! Mystery star to be monitored

Mysterious dusty object baffles astronomers

Breakthrough Listen and TESS team up for SETI

Breakthrough Listen’s new search for alien lasers

NASA back in the search for alien technosignatures