News tagged with asteroid belt
Related topics: nasa , asteroid , solar system , comet , jupiter
Tiny 'spherules' reveal details about Earth's asteroid impacts
(Phys.org) -- Researchers are learning details about asteroid impacts going back to the Earth's early history by using a new method for extracting precise information from tiny "spherules" embedded in layers ...
Space & Earth / Earth Sciences
Apr 25, 2012 |
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First comet found with ocean-like water: New clues to creation of Earth's oceans
(PhysOrg.com) -- New evidence supports the theory that comets delivered a significant portion of Earth's oceans, which scientists believe formed about 8 million years after the planet itself.
Space & Earth / Space Exploration
Oct 05, 2011 |
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New solar system formation models indicate that Jupiter's foray robbed Mars of mass
(PhysOrg.com) -- Planetary scientists have long wondered why Mars is only about half the size and one-tenth the mass of Earth. As next-door neighbors in the inner solar system, probably formed about the same ...
Jun 05, 2011 |
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Dawn probe reaches milestone approaching asteroid Vesta
(PhysOrg.com) -- NASA's Dawn spacecraft has reached its official approach phase to the asteroid Vesta and will begin using cameras for the first time to aid navigation for an expected July 16 orbital encounter. ...
Space & Earth / Space Exploration
May 03, 2011 |
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Swift and Hubble probe an asteroid crash (w/ video)
(PhysOrg.com) -- Late last year, astronomers noticed an asteroid named Scheila had unexpectedly brightened, and it was sporting short-lived plumes. Data from NASA's Swift satellite and Hubble Space Telescope ...
Space & Earth / Space Exploration
Apr 28, 2011 |
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When is an asteroid not an asteroid?
(PhysOrg.com) -- On March 29, 1807, German astronomer Heinrich Wilhelm Olbers spotted Vesta as a pinprick of light in the sky. Two hundred and four years later, as NASA's Dawn spacecraft prepares to begin ...
Space & Earth / Space Exploration
Mar 30, 2011 |
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Oxygen isotope analysis tells of the wandering life of a dust grain 4.5 billion years ago
Scientists have performed a micro-probe analysis of the core and outer layers of a pea-sized piece of a meteorite some 4.57 billion years old to reconstruct the history of its formation, providing the first ...
Mar 03, 2011 |
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Bizarre X-shaped intruder linked to an unseen asteroid collision (w/ Video)
Last January astronomers thought they had witnessed a fresh collision between two asteroids when images from the NASA/ESA Hubble Space Telescope revealed a bizarre X-shaped object at the head of a comet-like ...
Oct 13, 2010 |
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Moon's craters give new clues to early solar system bombardment
Take a cursory look at the moon, and it can resemble a pockmarked golf ball. The dimples and divots on its surface are testament that our satellite has withstood a barrage of impacts from comets, asteroids ...
Space & Earth / Space Exploration
Sep 16, 2010 |
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Sunlight spawns many binary and 'divorced' binary asteroids
(PhysOrg.com) -- The asteroid belt between Mars and Jupiter is often depicted as a dull zone of dead rocks with an occasional wayward speedster smashing through on its way toward the sun.
Space & Earth / Space Exploration
Aug 25, 2010 |
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An Avalanche of Asteroids
Imagine you're a Brontosaurus with your face in a prehistoric tree top, munching on fresh leaves. Your relatives have ruled planet Earth for more than 150 million years. Huge and strong, you feel invincible. ...
Space & Earth / Space Exploration
Mar 29, 2010 |
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Suspected Asteroid Collision Leaves Odd X-Pattern of Trailing Debris
(PhysOrg.com) -- NASA's Hubble Space Telescope has imaged a mysterious X-shaped debris pattern and trailing streamers of dust that suggest a head-on collision between two asteroids. Astronomers have long thought ...
Feb 02, 2010 |
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New research suggests that near-Earth encounters can 'shake' asteroids
(PhysOrg.com) -- For decades, astronomers have analyzed the impact that asteroids could have on Earth. New research by MIT Professor of Planetary Science Richard Binzel examines the opposite scenario: that ...
Space & Earth / Space Exploration
Jan 20, 2010 |
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Close-up photos of dying star show our sun's fate (w/ Video)
(PhysOrg.com) -- About 550 light-years from Earth, a star like our Sun is writhing in its death throes. Chi Cygni has swollen in size to become a red giant star so large that it would swallow every planet ...
Dec 15, 2009 |
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Study of first high-resolution images of Pallas confirms asteroid is actually a protoplanet
(PhysOrg.com) -- Britney E. Schmidt, a UCLA doctoral student in the department of Earth and space sciences, wasn't sure what she'd glean from images of the asteroid Pallas taken by the Hubble Space Telescope. ...
Oct 12, 2009 |
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