spacetoday.net: space news from around the webin association with SpaceNews


Dust, not "alien megastructures", cause of unusual dimming of star
Posted: Sun, Jan 7, 2018, 9:22 AM ET (1422 GMT)
KIC 8462852 (Tabbys Star) illustration (NASA) 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.
<<previous article   next article>>
news in brief
Union accepts contract to end ULA strike
Posted: Sun, May 20 1:41 PM ET (1741 GMT)

Contamination found in SLS core stage tubing
Posted: Sun, May 20 1:40 PM ET (1740 GMT)

Appropriators pass NASA spending bill that funds WFIRST
Posted: Sun, May 20 1:39 PM ET (1739 GMT)

news links
Saturday, May 26
Rocket Lab announces new mission launch window
New Zealand Herald — 9:29 am ET (1329 GMT)
Rocket Lab's new window for first launch
NEWS.com.au — 9:28 am ET (1328 GMT)
7 things we learned about SpaceX from COO Gwynne Shotwell
Los Angeles Business Journal — 9:24 am ET (1324 GMT)
Sir Richard Branson training to be astronaut as space race hots up
Press Association — 9:14 am ET (1314 GMT)


about spacetoday.net   ·   info@spacetoday.net   ·   mailing list