Five New Asteroids Surprise Astronomers In Hubble Images (sciencemag.org)
sciencehabit shares a report from Science Magazine: Five previously unknown asteroids in our solar system have photobombed new Hubble Space Telescope images. Astronomers spotted the space rocks -- plus another two that had been previously catalogued in images collected as part of the Frontier Fields project, which observed six clusters of galaxies billions of light-years away. When multiple exposures obtained at different times were stacked together to produce the image above, the asteroids showed up as trails because they had moved between exposures, and some of the asteroids were spotted more than once. The five new asteroids orbit within the asteroid belt between Mars and Jupiter. Previous studies missed them because they're extremely faint
I'd rather be photobombed by an asteroid than regular bombed by one.
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According to wikipedia an asteroid is between 1m and 1km in diameter. Roughly 500 000 asteroids have been confirmed in our solar system and another 250k objects with what I assume is vague data. "Among all the surveys, 4711 near-Earth asteroids have been discovered[18] including over 600 more than 1 km (0.6 mi) in diameter." With this information available I wonder, what is news worthy with 5 more found between mars and jupiter?
It's cool that the paths across the image are curved. Since the HST is in Earth orbit, the direction to the asteroid changes during the exposure time of the image. From the ground, the Earth's rotation is not fast enough to notice that effect.
The story sounds neat and all, but I can't actually see the purported images. Both links come from Science magazine: one was copied verbatim for the Slashdot posting; the other runs smack into a paywall. Without the pics, it may as well not exist - why bother posting the story at all? My guess is that submitter sciencehabit is a shill for the magazine, and Slashdot bought into it without checking the sources.
Hey, you know what else surprised astronomers in the Hubble images? Linux on the desktop!
AMIRIGHT?
...., the results will shock you!