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


Scientists: Pluto may be warming
Posted: Thu, Oct 10, 2002, 8:48 AM ET (1248 GMT)
Planetary scientists analyzing recent observations of the planet Pluto now believe that the planet may be warming, and not cooling as previously thought. A team of scientists led by Jim Elliot of MIT observed two occultations, where the planet passed in front of a star as seen from the Earth, in July and August. Preliminary analysis of the July data showed that the planet's atmosphere has appeared to cool significantly since the last occultation in 1988. However, the latest data, from an August occultation observed at infrared wavelengths in Hawaii, showed that the surface has warmed slightly — about 2 degrees Celsius — since 1988. Scientists suggest that this may be a thermal lag similar to how the warmest part of the day is in the afternoon, and not at noon, since Pluto has been moving away from the Sun in its elliptical orbit since 1989. Scientists also suggested that Pluto may have geysers of dark material erupting from its surface, similar to Triton.
<<previous article   next article>>
news in brief
Soyuz docks with ISS
Posted: Sun, Jun 10 11:12 AM ET (1512 GMT)

Curiosity detects organic molecules and methane cycle on Mars
Posted: Sun, Jun 10 11:10 AM ET (1510 GMT)

Northrop Grumman completes acquisition of Orbital ATK
Posted: Sun, Jun 10 11:09 AM ET (1509 GMT)

news links
Sunday, June 24
Space Force: Go Slow, Learn From Army Air Corps
Breaking Defense — 8:41 am ET (1241 GMT)
Falcon 9 conducts Static Fire test ahead of CRS-15 mission
NasaSpaceFlight.com — 8:37 am ET (1237 GMT)


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