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


Astronomers find 28 new exoplanets
Posted: Wed, May 30, 2007, 7:45 AM ET (1145 GMT)
Gliese 436b exoplanet illustration (L. Cook) A team of astronomers announced this week the discovery of an additional 28 extrasolar planets as well as additional information about one previously-known intriguing world. The 28 new exoplanets, announced Monday at an American Astronomical Society conference in Honolulu, were found by two separate efforts in the Northern and Southern Hemisphere, both looking for periodic Doppler shifts in the spectral lines of stars caused by gravitational wobbles induced by orbiting planets. The discoveries bring the total number of known exoplanets to 236. The team also announced studies of a previously-discovered exoplanet, Gliese 436b, which recent research suggested may be made of "hot ice". They measured the size and density of the planet through a series of transits and found it has a density of two grams per cubic centimeter, suggesting a composition evenly split between rocky material, likely in the planet's core, and water, compressed into an ice mantle.
<<previous article   next article>>
news in brief
Starship explodes during preparations for static-fire test
Posted: Sun, Jun 22 6:52 AM ET (1052 GMT)

French government leads investment in Eutelsat
Posted: Sat, Jun 21 8:38 AM ET (1238 GMT)

NASA further delays Ax-4 launch
Posted: Sat, Jun 21 8:34 AM ET (1234 GMT)

news links
Tuesday, July 1
Move over Starlink, here comes Kuiper
Gulf News — 4:58 am ET (0858 GMT)
USSF Seeks Industry Ideas For Space-Based Interceptors
Aviation Week — 4:57 am ET (0857 GMT)
Don’t forget about Iran’s space program
POLITICO — 4:54 am ET (0854 GMT)
EU Space Act is ‘orbital equivalent of GDPR’, says lawyer
Luxembourg Times — 4:53 am ET (0853 GMT)
Poland’s second ever astronaut is safe in space
Euro Weekly News — 4:49 am ET (0849 GMT)


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