Tag Archive for 'Dyson sphere'

$This Webb/MIRI image shows the binary system WR 140; eight symmetric diffraction spikes are seen around the saturated core of WR 140 that exhibit bluer colors than the dust emission. Image credit: Lau et al., doi: 10.1038/s41550-022-01812-x.$

Strange Rings around Distant Binary Star Are Not Alien Megastructure, Astronomers Say

Oct 12, 2022 by News Staff

An image of the binary system WR 140, captured by the NASA/ESA/CSA James Webb Space Telescope in July 2022, has baffled astronomers worldwide — even...

‘Alien Megastructure’ Not the Cause of KIC 8462852’s Dimming

Jan 4, 2018 by News Staff

Astronomers are one step closer to solving the mystery behind KIC 8462852, a main-sequence F-type star located in the constellation Cygnus, about 1,480...

Planets form from epic collisions between asteroids and even bigger bodies, called protoplanets. Sometimes the colliding bodies are ground to dust, and sometimes they stick together to ultimately form larger, mature planets. This artist’s conception shows one such smash-up. Image credit: NASA / JPL-Caltech.

Mystery of KIC 8462852 Deepens

Oct 5, 2016 by News Staff

Planets form from epic collisions between asteroids and even bigger bodies, called protoplanets. Sometimes the colliding bodies are ground to dust, and...

This illustration shows KIC 8462852 behind a shattered comet. Image credit: NASA / JPL-Caltech.

KIC 8462852: New Study Supports Natural Causes to Explain Behavior of Unusual Star

May 10, 2016 by News Staff

Results of a new study in the Astrophysical Journal (arXiv.org preprint) make it far less likely that KIC 8462852 is the home star of an advanced alien...

Unusual Star KIC 8462852 Likely Swarmed by Exocomets, Astronomers Say

Nov 25, 2015 by Natali Anderson

New observations of an unusual star called KIC 8462852 by NASA’s Spitzer Space Telescope suggest that its strange light signals are likely from extrasolar...

This illustration shows what the activities of a Kardashev Type III civilisation might look like - encapsulating the energy of stars by so-called Dyson spheres is one way to harness enormous energies on galactic scales; the resulting waste heat products should be detectable by telescopes. Image credit: Danielle Futselaar / ASTRON.

Astronomer Finds No Evidence of Kardashev Type III Civilizations in Local Universe

Sep 17, 2015 by News Staff

So-called Kardashev Type III civilizations – galaxy-spanning civilizations that command power equal to all of the stars in their galaxy – are...