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Alien megastructure

Scene from "Moonfall"

Bad moon falling: Geophysicist adds her own scientific spin to ‘Moonfall’ movie

Even geophysicist Mika McKinnon, one of the science consultants for a $140 million disaster movie called “Moonfall,” admits that the moon-crashing tale… Read More

Dyson sphere megastructure

Scientists look for new ways to track the technosignatures of alien civilizations

Could extraterrestrial civilizations leave their fingerprints as chlorofluorocarbons in planetary atmospheres, or the waste heat generated by industrial processes, or… Read More

Dyson sphere megastructure

Are we alone? NASA turns to the search for technosignatures beyond Earth

It’s been a quarter-century since Congress cut off NASA funding for the search for extraterrestrial intelligence, or SETI, but now… Read More

Freeman Dyson

‘Eggs’ for alien Earths? At 94, physicist Freeman Dyson’s brain is still going strong

Alien megaspheres … rockets powered by nuclear bombs … freeze-dried life in outer space: These are just some of the… Read More

Tabetha Boyajian

Alien megastructure? Forget about it, weird star’s discoverers say after further study

The astronomers who once speculated that an alien megastructure might be responsible for the weirdly fluctuating light from a distant… Read More

Tabby's Star

Scientists point to dust rather than aliens as cause of star’s odd behavior

Are aliens building a huge energy-generating megastructure around a weirdly dimming star? That way-out hypothesis has suffered another blow, thanks… Read More

Comet storm, not alien megastructures

Astronomers catch mysteriously dimming ‘alien megastructure’ star in the act

Tabby’s Star – also known as KIC 8462852 or the “alien megastructure” star – is at it again. And this time the… Read More

Comet storm, not alien megastructures

Astronomers round up the 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… Read More

Comet storm, not alien megastructures

Astronomers’ latest analysis turns ‘alien megastructure’ star into a triple mystery

It’s been almost a year since astronomers first speculated that a strangely dimming star called KIC 8462852 might harbor an… Read More

Red dwarf planetary system for SETI

SETI Institute launches radio search for alien life amid 20,000 red dwarf stars

The SETI Institute is shifting the focus of its search for extraterrestrial intelligence to places that could harbor life that’s… Read More

Dyson sphere megastructure

‘Alien megastructure’ revisited: Oddly dimming star poses new mystery

He’s not saying it’s aliens – but an astronomer has raised new questions about KIC 8462852, the strange star that stirred… Read More

Ceres' Occator Crater

Those mysterious bright spots on Ceres? Probably salty ice, scientists say

For months, scientists have puzzled over weirdly bright spots of material shining on the asteroid Ceres, but now they say the… Read More

Comet storm, not alien megastructures

Alien megastructure? Nothing to see around formerly weird star, scientists say

Recent infrared observations of a star that once showed a pattern of weird dimming have turned up no anomalous readings,… Read More

Allen Telescope Array antennas

‘Alien megastructure’ update: SETI telescope detects no sign of E.T., but search goes on

The SETI Institute says it hasn’t detected any alien radio signals coming from a star whose light seems to be dimming… Read More

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