The human dream of travel to Mars and beyond seems closer than it’s ever been. But a new study announced by the American Geophysical Union on October 21 suggests that these plans might need to be delayed, or at least significantly altered. The reason? Increasing levels of cosmic radiation spurred by decreasing activity on our sun.
The peak of the annual Orionid meteor shower has now passed, but you might see some meteors still from this shower if you’re looking in a dark country sky. That’s because Earth is still moving through the orbit of Comet Halley, which last returned near Earth in 1986 and which is due to return again in 2061. This comet spawned this annual meteor shower by leaving bits of dusty debris behind in its orbit. Each year when we intersect the orbit of Comet Halley, we see the Orionid meteor shower!
You’ll see the Small Magellanic Cloud from Earth’s Southern Hemisphere. It’s even farther to the south than its larger cousin, the the Large Magellanic Cloud . These two hazy patches in the southern sky are really separate galaxies from our Milky Way. They are satellite galaxies to the Milky Way, orbiting around it. Follow the links below to learn more about the Small Magellanic Cloud.
To kick off the Halloween season of candy consumption, costume concocting and ghost story telling, I present to you a most fiendish lifeform, one that lurks in the dark and spooky rainforests of southeast Asia leeching life from innocent tree roots: a strange entity known as the corpse flower.
A team led by astronomers has created the first three-dimensional map of a section of the universe 10.8 billion light years away, when the universe was only a quarter of its current age. This map, built from data collected from the W. M. Keck Observatory, is millions of light-years across and provides a tantalizing glimpse of large structures in the ‘cosmic web’ – the backbone of cosmic structure.
Weather permitting, almost everyone in North America will be able to see the partial solar eclipse this Thursday. Here’s more info, including when to see the eclipse where you live
Hurtling through space at about 35 miles (56 kilometers) per second, Comet Siding Spring (C/2013 A1) swept closest to Mars on October 19, 2014. It swept extremely close to the planet, closer than any known comet in recorded history. We’re just beginning to see the photos from this event. See the best ones here …
The most destructive tsunami in Hawaii’s recent history took place in 1946. Scientists now have evidence, however, suggesting that at least one colossal tsunami, some three times larger than the 1946 tsunami and larger than any in Hawaii’s known history, struck the islands in the past. These scientists say a similar mammoth tsunami could strike again …
Vast unexplored areas of the ocean have now been mapped with new satellite data and scientists have discovered thousands of previously uncharted seamounts in addition to an extinct spreading ridge in the Gulf of Mexico.