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


New study supports collision model of lunar formation
Posted: Fri, Aug 17, 2001, 10:54 AM ET (1454 GMT)
Model showing collision forming Moon (SwRI) A paper published this week lends new credence to the proposal that a giant impact early in the history of the solar system formed the Earth's Moon. The study, published in Thursday's issue of the journal Nature, used advanced computer modeling to simulate an impact of a Mars-sized planetesimal with the Earth. Those simulations showed that such an impact could create the Moon and explain why the Moon is relatively poor in iron compared to the Earth. The "giant impact" hypothesis had existed for a quarter-century and had become the leading explanation for the Moon's genesis, but this latest study, using more advanced computer modeling of impact physics, shows that such an impact can form the Moon without the requirement for additional modification of the Earth or Moon after the impact.
<<previous article   next article>>
news in brief
Final Delta 2 launches ICESat-2
Posted: Sun, Sep 16 10:41 AM ET (1441 GMT)

Japanese ISS cargo mission launch scrubbed
Posted: Sun, Sep 16 10:40 AM ET (1440 GMT)

SpaceX to announce new plans for circumlunar trip
Posted: Sun, Sep 16 10:39 AM ET (1439 GMT)

news links
Saturday, October 20
A fraying spaceflight infrastructure
The Space Review — 10:20 am ET (1420 GMT)
Asteroid mining: appealing to our romantic side?
The Space Review — 10:20 am ET (1420 GMT)
Review: Above and Beyond
The Space Review — 10:17 am ET (1417 GMT)
What A Space Force Could Mean For Greater Boston
WBUR-FM Boston — 9:20 am ET (1320 GMT)


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