|  Ebola Returns to Liberia: Where Did It Come From, and Could It Spread? The return of Ebola in Liberia — with three new cases reported this week in the previously Ebola-free country — is worrisome, and raises questions about whether Liberia was really free of the disease to begin with, experts say. Liberian health officials reported the death of a 17-year-old boy from Ebola on Sunday, and two other cases of Ebola in people who were with the boy when he died, according to ABC News. The new cases are the first in Liberia since the country was declared free of the disease on May 9. Read More » Colorful Arctic Animals Revealed in Thousands of Undersea Images  | New photographs of fluorescent sea creatures — including bright orange animals that resemble feather dusters with long, skinny handles, and spongy, neon-pink anemones — on the Arctic seafloor could help researchers determine how much methane, a potent greenhouse gas, will make its way to the atmosphere and contribute to climate change. It's amazing," said Guiliana Panieri, a scientist on the photo-taking expedition and a professor in environment and climate at The Arctic University of Norway. The colorful sea creatures live near methane seeps, or cracks in the ocean floor that naturally release methane.
| Read More » Solar-Powered Plane Soars to New World Records  | A solar-powered airplane currently soaring over the Pacific Ocean, from Japan to Hawaii, has set a slew of new world records, logging the farthest and longest flights made so far in a solar-powered aircraft. The Solar Impulse 2 plane set the new distance and duration records when it flew 3,519 miles (5,663 kilometers) in 80 hours. The solar-powered aircraft is currently partway through a planned journey around the world.
| Read More » Red, White & Blue! Stars Cluster in Festive Cosmic Portrait  | Reminiscent of the colors in the American flag, and released just in time for America's Independence Day on July 4 , the image shows open star cluster NGC 2367 and the surrounding hydrogen gas. The stars of NGC 2367 are young and hot, and shine with a brilliant blue light.
| Read More » NASA Slammed a Probe Into a Comet 10 Years Ago Today  | When you're watching the fireworks displays this Fourth of July, take a moment to reflect on some cosmic pyrotechnics that NASA pulled off a decade ago. On July 4, 2005, while zooming along millions of miles from Earth, NASA's Deep Impact spacecraft released an 820-lb. (370 kilograms) probe that smashed into Comet Tempel 1 at 23,000 mph (37,000 km/h), gouging out a crater about 500 feet (150 meters) wide. The Deep Impact mothership watched the powerful collision — which marked the first time a manmade object interacted with the surface of a comet — from a safe distance, studying the material blasted into space by the impactor.
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