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Venus has almost the same diameter as the Earth and is the next closest planet to the Sun. The similarity ends with the weather report, however. The surface temperature is more than 465 o C (870o F) and atmospheric pressure is 90 times that of Earth. The surface is hidden from view by a dense blanket of clouds, so we must use radar systems to “see” the landscape below.
For the last ten years the missions of the Mars Exploration Rovers, Spirit and Opportunity, have brought breathtaking images of Mars back to Earth.
Director of the Jet Propulsion Laboratory (JPL) from 1976 to 1982, Bruce Murray was a geologist whose vision was never earthbound. He earned his PhD from MIT and served two years in the U.S. Air Force before joining the California Institute of Technology (Caltech) in 1960. Caltech manages JPL for NASA, and soon Murray was working on JPL’s Mariner missions to Mars. During his tenure as director of JPL, the Viking spacecraft landed on Mars and the Voyagers began exploring the outer solar system. He also oversaw Earth orbital missions, including Seasat, the Solar Mesosphere Explorer, and Shuttle Imaging Radar-A.
The Viking program represents a major effort by the United States to explore Mars, with the particular goal of performing experiments on Martian soil to look for possible evidence of life. Four individual spacecraft were sent to Mars as part of the Viking project, two orbiters and two landers, launched as identical orbiter/lander pairs.
How do you illustrate a non-fiction book for kids based on the former ninth planet? Some people still have some pretty strong feelings about Pluto’s demotion: protest signs, student protest speeches, public demonstrations. Cries of unfairness could be heard when news of poor Pluto’s removal from the planetary ranks occurred. It is the intention of this new children’s book to set the story straight or at least attempt to share “Pluto’s side of the story." I‘ve worked in the children’s book market as a freelance illustrator for several years in addition to my full-time job with the Museum’s Early Childhood program. My latest book assignment from Abrams Books for Young Readers, Pluto's Secret: an icy World's Tale of Discovery, connected my job as an artist and an educator.
How did three staff members at the National Air and Space Museum get to collaborate on the Museum’s first children’s book, Pluto’s Secret: An Icy World’s Tale of Discovery? The short answer is that this is an extraordinary place to work. And when people are as generous with their time and talents as my collaborators have been, neat stuff happens.
Yes, the sky is falling. The asteroid impact that took place in Chelyabinsk, Russia, on February 15, 2013, has jump-started an international conversation about planetary protection and whether or not there is a really big asteroid/meteor/comet out there with our name on it. There is, we just haven’t found it yet. Miniscule objects enter the atmosphere all the time; occasionally larger objects come down—the Tunguska (1908) and Chelyabinsk (2013) events are prime examples of this—and once in a very great while a mass extinction impact takes place as in the Cretaceous–Paleogene extinction event of 66-65 million years ago that wiped out the dinosaurs.
The news that “Vulcan” topped the poll results taken by the SETI (Search for Extraterrestrial Intelligence) Institute in Mountain View, California as a possible name for one of the two tiny moons newly discovered to be orbiting Pluto has gotten quite a bit of press this week. In 2012, Mark Showalter of SETI, working with scientists on the New Horizons mission sending a probe to Pluto, found a tiny fifth moon orbiting the icy world.
A particularly bright fireball was observed earlier today over a wide area in Russia. Of even greater significance was the very strong sonic boom associated with the passage of the meteor through Earth’s atmosphere.
On 6 April 2012, the following notice appeared in the Minor Planet Circular, under the category “Names of New Minor Planets”: (4262) DeVorkin = 1989 CO Discovered 1989 Feb. 5 by M. Arai and H. Mori at Yorii. David H. DeVorkin (b. 1944)