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Astronomers Discover Houdini-Like Vanishing Act in Space

By Guest PostJuly 9, 2012Scienceastronomer, astronomical scale, baffling discovery, benjamin zuckerman, carl melis, Chile, constellation centaurus, dust, dust particles, dusty disc, game changer, gemini observatory, gemini telescope, infrared astronomical satellite, iras, joseph rhee, joy pollard, jupiter, lynette cook, mars, mega flare, mercury, NASA, neptune, norm murray, rocky debris, rocky planet, saturn rings, solar system, tyc 8241 2652, ucla, wise satellite

Astronomers report a baffling discovery never seen before: An extraordinary amount of dust around a nearby star has mysteriously disappeared.

“It’s like the classic magician’s trick — now you see it, now you don’t,” said Carl Melis, a postdoctoral scholar at UC San Diego and lead author of the research. “Only in this case, we’re talking about enough dust to fill an inner solar system, and it really is gone!”

“It’s as if the rings around Saturn had disappeared,” said co-author Benjamin Zuckerman, a UCLA professor of physics and astronomy. “This is even more shocking because the dusty disc of rocky debris was bigger and much more massive than Saturn’s rings. The disc around this star, if it were in our solar system, would have extended from the sun halfway out to Earth, near the orbit of Mercury.” (more…)

Broken Glass Yields Clues to Climate Change

By Guest PostDecember 31, 2010Environmentatmosphere, brittle objects, carbon dioxide, clay particles, climate, climate models, clouds, drinking glass, dust, dust particles, future climate, human hair, jasper kok, marine ecosystems, microscopic particles, northern africa, precipitation, sarah ruth, solar energy, Space, temperature, to model, united states, weather forecasting

*Ordinary drinking glasses and atmospheric dust particles break apart in similar patterns*

Clues to future climate may be found in the way an ordinary drinking glass shatters.

Results of a study published this week in the journal Proceedings of the National Academy of Sciences find that microscopic particles of dust can break apart in patterns that are similar to the fragment patterns of broken glass and other brittle objects. (more…)

Mars Movie: I’m Dreaming of a Blue Sunset

By Guest PostDecember 26, 20103 commentsSciencedust particles, french author, jim bell, marcel proust, mark lemmon, mars, mars exploration rover opportunity, mars movie, martian moons, martian sky, martian sunset, moon phobos, opportunity, pancam, robotic emissaries, spirit, sun, sunset movie, sunset movie from mars

A new Mars movie clip gives us a rover’s-eye view of a bluish Martian sunset, while another clip shows the silhouette of the moon Phobos passing in front of the sun.

America’s Mars Exploration Rover Opportunity, carefully guided by researchers with an artistic sense, has recorded images used in the simulated movies.

These holiday treats from the rover’s panoramic camera, or Pancam, offer travel fans a view akin to standing on Mars and watching the sky. (more…)

Tag Archives: dust particles

Astronomers Discover Houdini-Like Vanishing Act in Space

Broken Glass Yields Clues to Climate Change

Mars Movie: I’m Dreaming of a Blue Sunset