September 13, 2012 |
On Thursday night, an asteroid about the size of a 14-story building will hurtle past Earth at the mind-bending speed of 7 miles per second. And one month ago, scientists didn't even know it existed. Asteroid 2012 QG42 was just discovered on Aug. 26 by astronomers at the Catalina Sky Survey in Arizona. It has been classified as a PHA (Potentially Hazardous Asteroid) by the Minor Planet Center based in Cambridge, Mass. That sounds kind of scary, but scientists say there's no need to worry -- at least not yet. The asteroid is not expected to get closer to Earth than 7.5 x the distance of the moon from Earth. (The moon's distance from Earth fluctuates, but it averages 230,600 miles)
June 8, 2013 |
An asteroid the size of a truck zipped past Earth on Friday night, and you probably missed it. Asteroid 2013 LR6 is 30 feet in length, or a bit more than half the size of the space rock that exploded over Chelyabinsk, Russia, in February. It made its closest approach to our planet on Friday night at 9:42 p.m. PDT, according to a release from the Jet Propulsion Laboratory in La Cañada Flintridge. At that time, the asteroid was just 65,000 miles from the Earth's surface, or about a quarter of the average distance between Earth and the moon.
May 29, 2013 |
The science fiction movie "After Earth" marks a homecoming of sorts for star Will Smith, a Philadelphia native. A major portion of the Columbia Pictures movie, which opens Friday, was filmed at the new Sun Center Studios outside Philadelphia that is also not far from where director M. Night Shyamalan was raised. In "After Earth," Smith plays a general who returns to earth with his son -- played by Jaden Smith -- 1,000 years after humans have left. Although some key scenes of the film were shot in the redwoods of Northern California , as well as in Costa Rica and Utah, Sun Center Studios wasted no time touting its own ties to the movie -- and its Hollywood stars.
October 8, 2013 |
Scientists studying Martian clouds have created them right here on Earth. Using a cloud chamber in Germany and rock from the Mojave Desert, their experiment shows that the Red Planet's ice clouds often need far more humidity to form than clouds on Earth. The findings, published in the Journal of Geophysical Research: Planets, show that Martian clouds form under very different conditions than many scientists once thought - which may help researchers to better understand the planet's water cycle.
June 19, 2013 |
Earthlings, get ready to say cheese! NASA's Cassini spacecraft will be taking your picture next month -- from 898 million miles away. If you happen to have your eyes closed or your hair is out of place, don't worry. All of planet Earth will fit into 1.5 pixels in the final image. Most of the frame will be filled by Saturn and its gigantic rings (though some of the edges will be cut off). Scientists at the Jet Propulsion Laboratory in La Canada Flintridge are taking the picture - actually, a mosaic of images - because they can. It just so happens that Cassini and the sun will be on opposite sides of Saturn, allowing the spacecraft to see the planet and its famous rings with unusual clarity.
November 20, 2012 |
How old is the Earth? Scientists say 4.5 billion years. But Sen. Marco Rubio (R-Fla.) isn't a scientist, so he's not sure. That's what the Republican rising star told an interviewer for GQ who posed the question. “I'm not a scientist, man,” Rubio, a member of the Commerce, Science and Transportation Committee, said. “I can tell you what recorded history says; I can tell you what the Bible says; but I think that's a dispute amongst theologians, and I think it has nothing to do with the gross domestic product or economic growth of the United States.” In case the interviewer didn't hear him the first time, Rubio added: “I'm not a scientist.
May 17, 2013 |
It's 1.7 miles long. Its surface is covered in a sooty black substance similar to the gunk at the bottom of a barbecue. If it impacted Earth it would probably result in global extinction. Good thing it is just making a flyby. Asteroid 1998 QE2 will make its closest pass to Earth on May 31 at 1:59 p.m. PDT. Scientists are not sure where this unusually large space rock, which was discovered 15 years ago, originated from. But the mysterious sooty substance on its surface could indicate it may be the result of a comet that flew too close to the sun, said Amy Mainzer, who tracks near-Earth objects at Jet Propulsion Laboratory in La Cañada Flintridge . It might also have leaked out of the asteroid belt between the orbits of Mars and Jupiter, she said.
April 11, 2013 |
Early Thursday morning, solar observers watched as a dark spot on the sun erupted with an enormous flash of light, causing the biggest solar flare of 2013. Solar flares themselves don't last long, but this one was powerful enough to cause a bubble of solar material called a CME (coronal mass ejection) to come bursting off the sun. Up to billions of tons of that solar material is now hurtling through space at the mind-bending speed of more than 600 miles per second, and it is heading directly toward Earth.
November 19, 2012 |
Looking for a sign that the Republican Party might have some leaders who can appeal to younger voters? Mitt Romney cited the Beach Boys, Garth Brooks and the Eagles among his favorite musicians, but Sen. Marco Rubio raised some eyebrows Monday with hat tips to N.W.A and Public Enemy. Rubio, 42, who has sparked early 2016 presidential hype with a headlining visit to Iowa over the weekend, spoke to GQ about a number of topics, but his opinions on music and the Earth's age overshadowed his perspective on President Obama and young Republicans.
December 11, 2012 |
Asteroid 4179 Toutatis will zip past Earth this week. At its closest approach Tuesday night and into Wednesday morning, it will come within 18 lunar distances of the planet. That's 18 times the distance from the Earth to the moon. That may not sound too close, but the asteroid's erratic orbit occasionally has it zipping by a little too close for comfort. That's why the asteroid has been designated "potentially hazardous. " In 2004 for example, the asteroid's orbit took it even closer to the Earth -- just about four lunar distances.