SETI public: Barriers to Space and Why They Should be Overcome

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Science/Astronomy:

* Barriers to Space: And Why They Should Be Overcome

http://www.space.com/searchforlife/seti_vakoch_nasa_030911.html

"It's extremely difficult to live and work in space," says psychologist Albert Harrison, who compares a stint onboard the International Space Station to "being in a cramped house with trash piling up."

* NASA Report: Expand Search to Include Small Asteroids
http://www.space.com/scienceastronomy/asteroid_search_030910.html

A panel of experts working at NASA's request has recommended a bold new search for potentially dangerous asteroids, including smaller objects that could cause regional damage in an Earth impact.

* Astronotes: Mirror Decision for James Webb Space Telescope
http://www.space.com/astronotes/astronotes.html

A major step in the building of the James Webb Space Telescope (JWST) has been made - the selection of a beryllium-based mirror technology for the telescope's 21.3-feet (6.5-meter) primary mirror.

* Image of the Day: Mars Volcano: What a View!
http://www.space.com/imageoftheday/image_of_day_030911.html

The Mars Global Surveyor (MGS) continues to crank out views of the red planet. Add to the shooting gallery a new view of the giant martian volcano, Olympus Mons.

* Space Mailbag: Mars, Mars, Mars
http://www.space.com/scienceastronomy/space_mailbag-1.html

Connie writes: I really enjoyed Ed Grafton's photo of Mars. I wish I could do something like that. Thank him for bringing the planet a little bit closer to home, along with the humbling realization that something much bigger than ourselves exists out there.

* Fresh Spin on Solar Powered Asteroids
http://www.space.com/scienceastronomy/asteroid_spin_030910.html

Collisions can send asteroids whirling and twirling. But what can really put space rocks into a spin is the subtle yet constant effect of sunlight.

* Black Hole Strikes Deepest Musical Note Ever Heard
http://www.space.com/scienceastronomy/blackhole_note_030909.html

Astronomers have detected the deepest note ever generated in the cosmos, a B-flat flying through space like a ripple on an invisible pond. No human will actually hear the note, because it is 57 octaves below the keys in the middle of a piano.

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Recent Headlines:

* Final Titan 4B with Centaur Lofts NRO Spy Satellite to Orbit
http://www.space.com/missionlaunches/titan4_launch_030909.html

* Asteroid Scares: Why They Won't End
http://www.space.com/scienceastronomy/asteroid_scares_030909.html

* Hubble Gets Superb View of Saturn and Rings
http://www.space.com/scienceastronomy/hubble_saturn_030909.html

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