Category: Space

On Avatar and Mars.

More James Cameron news: Harry of AICN has a wide-ranging conversation with the director which, if you can get past the usual Knowlesisms, reveals that Project 880 is in fact Avatar, and that Cameron has been working with NASA on a “Live Video Stereo Motion Image” (3-D) camera for the next Mars Rover.

Ashes to Asteroids, Dust to Dusk.

“It broadens the market, which is important to us because our whole business plan is about getting more people access to space…Space needs to be affordable for all in some way.” For a small fee, a number of fledgling private space companies will soon send your remains (or personal mementos) into the cosmos, including Space Services, Inc., Beyond-Earth Enterprises, and ZeroG Aerospace. Families paid $995 to $5,300 to have their loved ones’ ashes aboard SS, Inc’s maiden flight next month, which sounds eminently reasonable to me given the usual financial costs of bereavement.

A “Lunar Armada.”

The LA Times examines the beginnings of the second lunar space race, which will involve, among others, the US, Europe, China, and India. “Some researchers even have a name for the first lunar city: Jamestown, in honor of the first English settlement in the New World.“

New World Coming?

Using the relatively new technique of gravitational microlensing, astronomers discover their “most Earth-like planet yet”, orbiting a star in Sagittarius 20,000 light-years away. While this planet — currently named OGLE-2005-BLG-390Lb — is likely too cold for habitation, “‘we may predict with reasonable probability that microlensing will discover planets with masses like that of Earth at a similar distance from their stars and with comparable surface temperature,’ said study co-author Bohdan Paczynski from Princeton University.“

Inconstant Cosmos.

“‘As you go back in time, the universe is pushing [outward] less and less,’ he said. ‘At some point, the pressure of dark energy is zero and is exerting no force on the universe. There is no explanation for it.'” New cosmological research announced yesterday further muddles our understanding of the expansion of the early universe and (once again) casts doubt on Einstein’s recently resurrected cosmological constant. “Schaefer based his findings on analysis of ultra-bright cosmic explosions called gamma-ray bursts, detected as far as 12.8 billion light-years away. He found that the most distant explosions appeared brighter than they should have been if the universe were accelerating at a constant rate.“

The Moon and Beyond.

“To become a multiplanet species, we must master the skills of extracting local resources, build our capability to journey and explore in hostile regions, and create new reservoirs of human culture and experience. That long journey begins on the moon — the staging ground, supply station and classroom for our voyage into the universe.” Astrophysicist Paul Sputig eloquently makes the case for a return to manned lunar exploration.

Gravity’s Rainbow.

“Suppose the asteroid is traveling 60,000 miles per hour. You want to make it 60,001.” Concerned by the possible 2036 impact of 99942 Apophis, two clever NASA astronauts have developed a tractor beam of sorts to pull asteroids off a possible collision course. Namely, send a relatively small (20-ton) ion-powered spacecraft to intercept and hover near the offending asteroid, and then let gravity work its mojo. “Even as the spacecraft counters the asteroid’s gravity, he said, its own gravity will pull the asteroid out of orbit.”

Houston, we’ve had a problem.

“‘It is now commonly accepted that was not the right path,’ Griffin said. ‘We are now trying to change the path while doing as little damage as we can.'” In an interview with USA Today, NASA head Michael Griffin calls the Space Shuttle and ISS programs mistakes. Hmmm, interesting. This article reminded me of a quote I’ve seen attributed to Jerry Pournelle: “I always knew I’d live to see the first man walk on the Moon. I never dreamed I’d see the last.“