Quantcast

Latest Don Yeomans Stories

Three From JPL Included On Time Magazine 'Most Influential' List
2013-04-19 15:11:39

NASA's Jet Propulsion Laboratory On a new list of the 100 most influential people on Earth, three work at the same California address, where they've led projects to study things that are not on Earth. The list announced today by TIME Magazine includes Don Yeomans, Pete Theisinger and Richard Cook, all at NASA's Jet Propulsion Laboratory in Pasadena, Calif. Yeomans manages NASA's Near-Earth Objects Program Office at JPL, which coordinates the search for and tracking of asteroids and...

Comet May Be On A Collision Course With Mars
2013-03-28 10:52:43

NASA Science [ Watch the Video ScienceCasts: Collision Course? ] Over the years, the spacefaring nations of Earth have sent dozens of probes and rovers to explore Mars. Today there are three active satellites circling the red planet while two rovers, Opportunity and Curiosity, wheel across the red sands below. Mars is dry, barren, and apparently lifeless. Soon, those assets could find themselves exploring a very different kind of world. "There is a small but non-negligible chance...

Comet Elenin Gone But Should Be Forgotten
2011-10-26 09:22:25

Comet Elenin is no more. Latest indications are this relatively small comet has broken into even smaller, even less significant, chunks of dust and ice. This trail of piffling particles will remain on the same path as the original comet, completing its unexceptional swing through the inner solar system this fall. "Elenin did as new comets passing close by the sun do about two percent of the time: It broke apart," said Don Yeomans of NASA's Near-Earth Object Program Office at NASA's Jet...

Meteor Seen In Skies Over Arizona, Nevada and Southern California
2011-09-15 06:29:08

  Arizona, Nevada and Southern California residents got a brilliantly bright treat Wednesday night as a possible fragment of an asteroid entered Earth´s atmosphere and streaked across the southwestern sky, according to a NASA scientist, after dozens of eyewitness reports were taken. Residents from Phoenix to Las Vegas reported to local authorities and various media outlets that they had seen a bright light moving quickly across the night sky west to east at around 7:45 pm PDT...

69adae6ee6a6b4eeda0de5cca4cc16cb
2011-08-17 10:40:00

Often, comets are portrayed as harbingers of gloom and doom in movies and on television, but most pose no threat to Earth. Comet Elenin, the latest comet to visit our inner solar system, is no exception. Elenin will pass about 22 million miles (35 million kilometers) from Earth during its closest approach on Oct. 16, 2011. Also known by its astronomical name C/2010 X1, the comet was first detected on Dec. 10, 2010 by Leonid Elenin, an observer in Lyubertsy, Russia, who made the discovery...

b4020f9a399246a5f6b68e7649e9dc7c
2011-05-05 08:10:24

You may have heard the news: Comet Elenin is coming to the inner-solar system this fall. Comet Elenin (also known by its astronomical name C/2010 X1), was first detected on Dec. 10, 2010 by Leonid Elenin, an observer in Lyubertsy, Russia, who made the discovery "remotely" using the ISON-NM observatory near Mayhill, New Mexico. At the time of the discovery, the comet was about 647 million kilometers (401 million miles) from Earth. Over the past four-and-a-half months, the comet has "“ as...

9d3c49ffaa64a058db1f1fa46429582b
2011-05-02 14:50:37

Since the dawn of the space age, humanity has sent 16 robotic emissaries to fly by some of the solar system's most intriguing and nomadic occupants -- comets and asteroids. The data and imagery collected on these deep-space missions of exploration have helped redefine our understanding of how Earth and our part of the galaxy came to be. But this fall, Mother Nature is giving scientists around the world a close-up view of one of her good-sized space rocks -- no rocket required. "On November 8,...

a1fdcec1341f8ff5a2884cc0037318161
2010-04-08 07:55:00

You know them as "shooting stars," or meteors. Space scientists know them as the fiery end of tiny visitors from space. Those momentary streaks of light across the night sky are nothing more than small to almost-microscopic pieces of space debris whose trip through the void has ended in a kamikaze run into Earth's atmosphere. Of course, with 100 tons of space rock and rubble bombarding the planet each and every day, you'd think you could stick your head out the window any night of the week...

629dfe88733a0c5c2c54c0d558090a6c1
2009-01-12 13:25:00

Italian astronomer Andrea Boattini discovered six comets in 2008 while tracking cosmic debris throughout the solar system at Mount Lemmon Observatory in Arizona. And though it isn't a world record, the discovery of six comets in one year is the most found by an Italian astronomer since the mid-19th Century. The Catalina Sky Survey is part of a NASA project to find and track near-Earth objects (NEOs) using two telescopes in Arizona and one in Australia. In 1998, NASA started compiling an...

2e2f71376094585e5f5ecbf1135cfe84
2008-07-01 13:47:51

The year is 1908, and it's just after seven in the morning. A man is sitting on the front porch of a trading post at Vanavara in Siberia. Little does he know, in a few moments, he will be hurled from his chair and the heat will be so intense he will feel as though his shirt is on fire. That's how the Tunguska event felt 40 miles from ground zero. Today, June 30, 2008, is the 100th anniversary of that ferocious impact near the Podkamennaya Tunguska River in remote Siberia--and after 100 years,...


Word of the Day
sough
  • A murmuring sound; a rushing or whistling sound, like that of the wind; a deep sigh.
  • A gentle breeze; a waft; a breath.
  • Any rumor that engages general attention.
  • A cant or whining mode of speaking, especially in preaching or praying; the chant or recitative characteristic of the old Presbyterians in Scotland.
  • To make a rushing, whistling, or sighing sound; emit a hollow murmur; murmur or sigh like the wind.
  • To breathe in or as in sleep.
  • To utter in a whining or monotonous tone.
According to the OED, from the 16th century, this word is 'almost exclusively Scots and northern dialect until adopted in general literary use in the 19th.'
Related