Tag Archives: Alien Megastructures

Scientists seek new ways to track technosignatures

Could extraterrestrial civilizations leave their fingerprints as chlorofluorocarbons in planetary atmospheres, or the waste heat generated by industrial processes, or artificial bursts of neutrinos or gravitational waves? That’s what a vanguard of astronomers would like to find out, and they’re hoping to win … Continue reading

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NASA turns to the search for technosignatures

It’s been a quarter-century since Congress cut off NASA funding for the search for extraterrestrial intelligence, or SETI, but now the space agency is revisiting the topic under another name: technosignatures. “I’m excited to announce that NASA is taking the … Continue reading

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Alien megastructure? Forget about it, scientists say

The astronomers who once speculated that an alien megastructure might be responsible for the weirdly fluctuating light from a distant star have now fully ruled out that way-out explanation. Their conclusion, reported in a paper published today by Astrophysical Journal Letters, … Continue reading

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Star’s weirdness ascribed to dust, not aliens

Are aliens building a huge energy-generating megastructure around a weirdly dimming star? That way-out hypothesis has suffered another blow, thanks to a study that draws upon infrared as well as ultraviolet observations. The star, known as KIC 8462852 or Tabby’s … Continue reading

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‘Alien megastructure’ star caught in the act

Tabby’s Star – also known as KIC 8462852 or the “alien megastructure” star – is at it again. And this time the world is watching. The star in the constellation Cygnus has intrigued astronomers for a year and a half because they … Continue reading

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Unusual suspects for ‘alien megastructure’ star

That mysterious “alien megastructure” star is still a mystery, but the most plausible explanations appear to be dense patches of interstellar gas or dust that just happened to pass in front of the star. That’s the upshot of analyses conducted … Continue reading

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‘Alien megastructure’ star’s mystery deepens

It’s been almost a year since astronomers first speculated that a strangely dimming star called KIC 8462852 might harbor an alien megastructure, and newly reported observations are making the case even stranger. KIC 8462852 is also known as Tabby’s Star, … Continue reading

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