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The rites of spring are many and varied. As a child in rural England, I was once given the chore of finding and rearranging the bulbs of a long-unattended flowerbed. I’m not sure if spring was a wise time to do this from a horticultural point of view. It seemed to me that, having survived the rigours of winter, these hardy little tusks of plant matter probably wanted to wait undisturbed for the Sun’s warmth to penetrate the blanket of earth above them. But such was the issued command, and so I began to brush away last year’s dead leaves...

Earth's Milky Way Neighborhood Gets More Respect Old picture: Local Arm a small "spur" of Milky Way. New picture: Local Arm probable major branch of Perseus Arm. CREDIT: Robert Hurt, IPAC; Bill Saxton, NRAO/AUI/NSF. Our Solar System's Milky Way neighborhood just went upscale. We reside between two major spiral arms of our home galaxy, in a structure called the Local Arm. New research using the ultra-sharp radio vision of the National Science Foundation's Very Long Baseline Array (VLBA) indicates that the Local Arm, previously thought to be only a small spur, instead is much more like the adjacent major arms,...

Earth's internal engine is running about 1,000 degrees Celsius (about 1,800 degrees Fahrenheit) hotter than previously measured, providing a better explanation for how the planet generates a magnetic field, a new study has found. A team of scientists has measured the melting point of iron at high precision in a laboratory, and then drew from that result to calculate the temperature at the boundary of Earth's inner and outer core — now estimated at 6,000 C (about 10,800 F). That's as hot as the surface of the sun. The difference in temperature matters, because this explains how the Earth generates...

Famed astrophysicist Stephen Hawking warns that humans will need to go beyond the planet Earth if they are to survive as a species. “We must continue to go into space for humanity,” Hawking told a gathering this week in Los Angeles, California. “We won’t survive another 1,000 years without escaping our fragile planet.” Hawking, 71, has long been a proponent of space exploration. Speaking at a 2008 ceremony marking the 50th anniversary of the U.S. space agency, NASA, Hawking called for a new era in human space exploration, comparable, he said, to the European voyages to the New World more...

Sun in the Way Will Affect Mars Missions in April This diagram illustrates the positions of Mars, Earth and the sun during a period that occurs approximately every 26 months, when Mars passes almost directly behind the sun from Earth's perspective. Image credit: NASA/JPL-Caltech March 20, 2013 Mars Missions Status Report PASADENA, Calif. - The positions of the planets next month will mean diminished communications between Earth and NASA's spacecraft at Mars. Mars will be passing almost directly behind the sun, from Earth's perspective. The sun can easily disrupt radio transmissions between the two planets during that near-alignment. To prevent...

Describing himself as "a child of the ocean," Secretary of State John Kerry warned that the "fragile ecosystem" is threatened by climate change. "We call this beautiful planet that we are privileged to inhabit for a short period of time -- we call it Earth, but it could well have been called Ocean because three-quarters of it is ocean," Kerry told a gathering at the National Geographic Society in Washington on Monday. Kerry mentioned the "enormous challenge ahead of us," given an "energy policy that results in acidification, the bleaching of coral,

CAPE CANAVERAL, Florida (Reuters) - NASA chief Charles Bolden has advice on how to handle a large asteroid headed toward New York City: Pray. That's about all the United States - or anyone for that matter - could do at this point about unknown asteroids and meteors that may be on a collision course with Earth, Bolden told lawmakers at a U.S. House of Representatives Science Committee hearing on Tuesday. An asteroid estimated to be have been about 55 feet in diameter exploded on February 15 over Chelyabinsk, Russia, generating shock waves that shattered windows and damaged buildings. More than...

A pair of newly discovered stars is the third-closest star system to the Sun, according to a paper that will be published in Astrophysical Journal Letters. The duo is the closest star system discovered since 1916. The discovery was made by Kevin Luhman, an associate professor of astronomy and astrophysics at Penn State University and a researcher in Penn State's Center for Exoplanets and Habitable Worlds. Both stars in the new binary system are "brown dwarfs," which are stars that are too small in mass to ever become hot enough to ignite hydrogen fusion. As a result, they are...

This year seems to be one for comets. In addition to the two projectiles that will zoom near Earth, a third one has recently been discovered. The newest one, though, won't fly by our planet. Instead, it will pass uncomfortably close to Mars in 2014. Named C/2013 A1, the comet will fly near the Red Planet on Oct. 19, 2014 according to preliminary orbital prediction models. The icy missile is thought to have first originated from the Oort Cloud, which is a hypothetical region containing billions of cometary nuclei located around our solar system. Comets have struck planets in the...

Try using the entire Earth to hunt for a new fundamental force of nature. So say Larry Hunter of Amherst College in Massachusetts, and colleagues. They have created a map of the spins of electrons deep within the Earth's mantle, which could be used to reveal the as-yet-unseen force as well as the strange particles – known as "unparticles" – that might carry it. We currently know of four fundamental forces: gravity, electromagnetism and the strong and weak nuclear forces. The hypothetical fifth force can be thought of as a version of magnetism that does not weaken as quickly with...

A University of Utah seismologist analyzed seismic waves that bombarded Earth's core, and believes he got a look at the earliest roots of Earth's most cataclysmic kind of volcanic eruption. But don't worry. He says it won't happen for perhaps 200 million years. "What we may be detecting is the start of one of these large eruptive events that - if it ever happens - could cause very massive destruction on Earth," says seismologist Michael Thorne, the study's principal author and an assistant professor of geology and geophysics at the University of Utah.

Most people seem to assume that the universe is chock full of intelligent life. But what if we ARE alone in the Universe? So far all SETI searches have shown no evidence of other civilizations out there. If you have devoted your life to searching for intelligent life elsewhere in the universe, you are probably wasting your time. The more I study about the formation of the earth, the more convinced I am that the earth is pretty much a freak occurrence whose conditions for life or intelligent life exits nowhere else. So what are the theological implications of this?...

You can now see satellite images of the entire planet using Google Earth. Some folks have uncovered unbelievable hidden landmarks!

Did An 8th Century Gamma Ray Burst Irradiate Earth?Science DailyJanuary 21,2013 A nearby short duration gamma-ray burst may be the cause of an intense blast of high-energy radiation that hit the Earth in the 8th century, according to new research led by astronomers Valeri Hambaryan and Ralph NeuhÓ“user. The two scientists, based at the Astrophysics Institute of the University of Jena in Germany, publish their results in the journal Monthly Notices of the Royal Astronomical Society. In 2012 scientist Fusa Miyake announced the detection of high levels of the isotope Carbon-14 and Beryllium-10 in tree rings formed in 775 CE,...

Later this year, Comet ISON could put on an unforgettable display as it plunges toward the sun for a fiery encounter likely to turn the "dirty snowball" into a naked-eye object in broad daylight. At the moment, however, it doesn't look like much. John Chumack sends this picture, taken Jan. 8th, from his private observatory in Yellow Springs, Ohio:

LONG BEACH, Calif. (AP) — Astronomers hunting for Earth-like planets now have many places to look. A new estimate released Monday suggested the Milky Way galaxy is home to at least 17 billion planets similar in size to our planet. It doesn't mean all are potentially habitable, but the sheer number of Earth-size planets is a welcome starting point in the search for worlds like our own. Scientists have yet to find a twin Earth — one that's not only the right size but also located in the so-called Goldilocks zone, a place that's not too hot and not too...

Spotted just two days ago, it came zipping toward us inside the moon's orbitA newfound asteroid gave Earth a close shave early today, zipping between our planet and the moon just two days after astronomers first spotted it. The near-Earth asteroid 2012 XE54, which was discovered Sunday, came within 140,000 miles (230,000 kilometers) of our planet at about 5 a.m. EST Tuesday, researchers said. For comparison, the moon orbits Earth at an average distance of 240,000 miles or so (386,000 km). Astronomers estimate that 2012 XE54 is about 120 feet (36 meters) wide — big enough to cause substantial damage...

You need to read the full interview to appreciate how much of a non sequitur this question was. He's going back and forth with the author, Michael Hainey, about the standard post-election fare --- Obama, 2016, his biography --- and then, out of nowhere, "How old do you think the Earth is?" It's not organically part of the conversation but suddenly there it is, and Hainey doesn't follow up on it. It has a distinct check-the-box feel to it, as if either he himself or his editors wanted to make sure that the question was asked but weren't particularly interested...

Astronomers have discovered a potential "rogue" alien planet wandering alone just 100 light-years from Earth, suggesting that such starless worlds may be extremely common across the galaxy. The free-floating object, called CFBDSIR2149, is likely a gas giant planet four to seven times more massive than Jupiter, scientists say in a new study unveiled Wednesday. The planet cruises unbound through space relatively close to Earth (in astronomical terms), perhaps after being booted from its own solar system. "If this little object is a planet that has been ejected from its native system, it conjures up the striking image of orphaned worlds,...