Dust, not "alien megastructures", cause of unusual dimming of star
Posted: Sun, Jan 7, 2018, 9:22 AM ET (1422 GMT)
Astronomers announced this week that they believe the unusual changes in brightness in a distant star can be explained by a natural, and not artificial, cause. Observations of the star KIC 8462852 by NASA's Kepler spacecraft captured the attention of astronomers because of an unusual dimming pattern that some suggested could be explained if giant structures, created by some alien civilization, were orbiting the star. New observations of the star, though, show that the star dims by different amounts at different wavelengths, and thus whatever is causing the dimming is not opaque. Instead of alien megastructures, astronomers suggest dust clouds around the star may be causing the brightness changes.
Astronomers announced this week that they believe the unusual changes in brightness in a distant star can be explained by a natural, and not artificial, cause. Observations of the star KIC 8462852 by NASA's Kepler spacecraft captured the attention of astronomers because of an unusual dimming pattern that some suggested could be explained if giant structures, created by some alien civilization, were orbiting the star. New observations of the star, though, show that the star dims by different amounts at different wavelengths, and thus whatever is causing the dimming is not opaque. Instead of alien megastructures, astronomers suggest dust clouds around the star may be causing the brightness changes.
Related Links:
| <<previous article | next article>> |
|
news in brief
|
|
|
|
news links
|
|
Tuesday, July 21
Sophie Adenot’s autobiography to be published by JCLattès in early 2027
ESA — 7:13 am ET (1113 GMT) 3D-printed metal: unlocking crew autonomy
ESA — 7:13 am ET (1113 GMT) Russia Launches Second Satellite Batch for Its Starlink Rival—the Math Still Looks Rough
United24 Media — 7:13 am ET (1113 GMT) Bill seen easing way for Starlink's entry passes Legislative Yuan
Focus Taiwan — 7:12 am ET (1112 GMT) US rocket-launch bottleneck worries Sweden, which just launched its first military satellite
Defense One — 7:10 am ET (1110 GMT) |
