Not exact matches
Combining images from the various telescopes, an international team
found that the
asteroid varies in brightness by a factor of
about 10 every 7.3 hours, matching its spin
about its axis.
To get a sense of how people would feel
about finding intelligent aliens, Varnum analyzed reports that the interstellar
asteroid «Oumuamua could be an alien spaceship (SN Online: 12/18/17).
The meteorite, dubbed Northwest Africa (NWA) 7034, contains a concentration of water by weight
about ten times higher than in any of the other 100 or so known Martian meteorites — those rare rocks that get ejected from the Martian surface into space when an
asteroid hits the planet, and eventually
find their way to Earth.
The results could solve several puzzles
about the composition of meteorites
found on Earth and may explain why
asteroids are different from comets.
NASA announced Tuesday a Grand Challenge focused on
finding all
asteroid threats to human populations and knowing what to do
about them.
On the one hand there was a quest by scientists to
find the world's funniest joke, and on the other, dire warnings
about the dangers of mobile phones, an increase in the incidence of new variant CJD, climate change, and cosmic threats to Earth in the shape of
asteroids and gamma ray bursts.
Space scientist William Bottke of the Southwest Research Institute in Boulder, Colorado, says the
findings reveal much
about the physical evolution of
asteroids.
• In the News Focus section of Science this week, Robert Irion, who directs the Science Communication Program at the University of California, Santa Cruz, writes
about a private foundation that is raising money for a space mission to
find asteroids that could harm Earth.
«We may not even know what we should be looking for in these
asteroids, but by looking at what molecules we
find, we can ask different and more questions
about how they could have helped get life started.»
«
Asteroids were being
found, but no one was doing anything
about what happens if we
find one with our address on it,» says Rusty Schweickart, emeritus chair of B612 and an Apollo 9 astronaut.
«What's neat
about what we
found is that when the
asteroid hit, it completely flipped how the oceans worked.
WISE is expected to
find about 100,000 new
asteroids in the
asteroid belt between Mars and Jupiter and hundreds of
asteroids that pass close to Earth.
From that, Saint - Exupery spun a fanciful, faintly ethereal fable
about a downed airman who
finds himself face - to - face with a curious, blond - haired young boy who claims to be the sole inhabitant of a distant
asteroid (# B - 612), and who regales the pilot with tales of the interplanetary travels that eventually brought him to earth.
Amber waves of grain, waving sunlit flags, and Midwestern boys playing baseball are what our heroes are fighting for: New York City and its liberal stongholds, not so much (an early scene
finds asteroid chunks knocking
about the Big Apple's skyscrapers, scaring and / or crushing jive - talking city folk like Eddie Griffin's bike messenger).
In the
Find a Meteorite section, students can learn about asteroids and meteorites and teachers will find a leaders guide, handout, and fact search to use in their lesson plann
Find a Meteorite section, students can learn
about asteroids and meteorites and teachers will
find a leaders guide, handout, and fact search to use in their lesson plann
find a leaders guide, handout, and fact search to use in their lesson planning.
Find out more
about Lovers in a Dangerous Spacetime by visiting the official
Asteroid Base blog as it revs up for its expected 2013 release.