Meteoroids! Asteroids! Comets!
... • Many animals became extinct (including many types of dinosaurs) ...
... • Many animals became extinct (including many types of dinosaurs) ...
Volume 20 Number 5 April 2012 - Forsyth Astronomical Society
... located 10.5 billion light years away in the direction of the constellation LEO. The cluster is made up of 30 galaxies packed closely together, forming the earliest known "galaxy city" in the universe. They used a new technique which allows them to measure accurate distances between Earth and thousa ...
... located 10.5 billion light years away in the direction of the constellation LEO. The cluster is made up of 30 galaxies packed closely together, forming the earliest known "galaxy city" in the universe. They used a new technique which allows them to measure accurate distances between Earth and thousa ...
The difference between asteroids and meteorites
... explode in the atmosphere – sometimes called bolides—can create shockwaves, which can cause problems. In February 2013 a meteor that exploded While we know that some asteroids pass very close over Chelyabinsk, Russia shattered windows with to Earth's orbit around the Sun, we've been lucky in its air ...
... explode in the atmosphere – sometimes called bolides—can create shockwaves, which can cause problems. In February 2013 a meteor that exploded While we know that some asteroids pass very close over Chelyabinsk, Russia shattered windows with to Earth's orbit around the Sun, we've been lucky in its air ...
2-IYA HighLights2009
... its four brightest moons. They appear as pinpricks of light, orbiting the gas giant. They were first seen by Galileo in 1610. ...
... its four brightest moons. They appear as pinpricks of light, orbiting the gas giant. They were first seen by Galileo in 1610. ...
Slide 20 - International Year of Astronomy 2009
... its four brightest moons. They appear as pinpricks of light, orbiting the gas giant. They were first seen by Galileo in 1610. ...
... its four brightest moons. They appear as pinpricks of light, orbiting the gas giant. They were first seen by Galileo in 1610. ...
tail can extend millions of kilometers into space
... • Craters on Earth are also weathered and eroded • Impacts causing natural disasters are infrequent and global impacts occur about every 300,000 years. ...
... • Craters on Earth are also weathered and eroded • Impacts causing natural disasters are infrequent and global impacts occur about every 300,000 years. ...
the_young_astronomers_newsletter-NL1304-F
... The Methuselah star, HD 140283, has been known for more than a century because of its fast motion across the sky, evidence that the star is a visitor to our neighborhood. Its orbit carries it down from the ancient halo of stars that encircle the Milky Way, and it will eventually slingshot back to th ...
... The Methuselah star, HD 140283, has been known for more than a century because of its fast motion across the sky, evidence that the star is a visitor to our neighborhood. Its orbit carries it down from the ancient halo of stars that encircle the Milky Way, and it will eventually slingshot back to th ...
Comets, Asteroids, Meteoroids
... the picture below? A comet, asteroid, meteoroid, meteor, or meteorite? • Most likely it was an asteroid • Why study comets, asteroids, & meteoroids. • Because they threaten the existence of life on Earth ...
... the picture below? A comet, asteroid, meteoroid, meteor, or meteorite? • Most likely it was an asteroid • Why study comets, asteroids, & meteoroids. • Because they threaten the existence of life on Earth ...
Space Wk 6 Student PPT
... • A streak of light ( a “shooting star”0 that suddenly appears in the sky when a particle from a comet or asteroid enters the Earth’s atmosphere • Most meteors occur in the region of the atmosphere called the thermosphere. This “meteoric region” lies between about 80 km and 120 Km in altitude. ...
... • A streak of light ( a “shooting star”0 that suddenly appears in the sky when a particle from a comet or asteroid enters the Earth’s atmosphere • Most meteors occur in the region of the atmosphere called the thermosphere. This “meteoric region” lies between about 80 km and 120 Km in altitude. ...
Comets, Asteroids and Meteors
... Comets • The “Dirty Snowballs” of the Solar System • About the size of a Mountain • Made of Ice, rock and dust (Has nucleus, coma, tail) • Some orbit past Pluto ...
... Comets • The “Dirty Snowballs” of the Solar System • About the size of a Mountain • Made of Ice, rock and dust (Has nucleus, coma, tail) • Some orbit past Pluto ...
B612 Foundation
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The B612 Foundation is a private nonprofit foundation with headquarters in the United States, dedicated to planetary defense against asteroids and other near-Earth object (NEO) impacts. It is led mainly by scientists, former astronauts and engineers from the Institute for Advanced Study, Southwest Research Institute, Stanford University, NASA and the space industry.As a non-governmental organization it has conducted two lines of related research to help detect NEOs that could one day strike the Earth, and find the technological means to divert their path to avoid such collisions. The organization has publicized the true rate of ""city-killer"" type impacts of the same magnitude as the explosive 1908 Tunguska event, a rate which is from three to ten times greater than previously believed, or about every century on average. It also assisted the Association of Space Explorers in helping the United Nations establish the International Asteroid Warning Network, as well as a Space Missions Planning Advisory Group to provide oversight on proposed asteroid deflection missions.In 2012, the foundation announced it would design and build a privately financed asteroid-finding space observatory, the Sentinel Space Telescope, to be launched in 2017–2018. Once stationed in a heliocentric orbit around the Sun similar to that of Venus, Sentinel's supercooled infrared detector will help identify dangerous asteroids and other NEOs that pose a risk of collision with Earth. In the absence of substantive planetary defense provided by governments worldwide, B612 is conducting a fundraising campaign to cover the Sentinel Mission, estimated at $450 million for 10 years of operation.Fund raising has been very slow—raising only US$3 million in 2012 and 2013—and, as of June 2015, NASA is re-examining its reliance on private sector approach to space-based NEO survey missions.The B612 Foundation is named for the asteroid home of the eponymous hero of Antoine de Saint-Exupéry's The Little Prince.