What would happen to our planet if all us humans – for some reason – suddenly vanished? Here’s AsapSCIENCE’s take on it.
Many people are familiar with Orion, the most noticeable of all constellations. The three stars of Orion’s Belt jump out at you midway between Orion’s two brightest stars, Betelgeuse and Rigel, which are two of the brightest stars in the sky. Once you find the Belt stars, you can also locate the Orion Nebula, otherwise known as M42, a stellar nursery where new stars are being born. If you look closely, you’ll notice a curved line of stars “hanging” from the three Belt stars. These stars represent Orion’s Sword. Look for the Orion Nebula about midway down in the Sword of Orion.
January 30, 1826. Workers completed construction of the first modern suspension bridge on this date. It was the Menai Bridge between Wales on the island of Great Britain and the smaller island of Anglesey, to the west. According to local reports about the bridge from nearly 200 years ago, travel in the strait between Wales and Anglesey was hazardous, due to shifting currents and unpredictable weather patterns. But the island of Anglesey had the Atlantic Ocean and Irish Sea to its west, and, especially after Ireland joined the United Kingdom in 1800, people increasingly wanted to use Anglesey as a jumping off point to reach the Emerald Isle by ferry boat.
An international team of researchers says a partial skull from a cave in northern Israel is some 55,000 years old. They say it sheds light on the interbreeding of our ancestors with Neanderthals and provides new insights into the migration of modern humans out of Africa.
Don’t miss the photos at the bottom of this post!
Jack Fusco captured this photo at Solana Beach in San Diego County, California on January 23. He’s working on a series of images from sea caves throughout the San Diego area.
Tonight’s chart covers a wider area of sky than we typically show. It’s in answer to a reader in Nashville, who wrote, I’ve heard mention of the Winter Circle of Stars. Could you list the stars in this circle?
You will find these stars at this time of year by looking southeast at early-to-mid evening, and more southward from mid-to-late evening. Although the almost-full waxing gibbous moon shines within the Winter Circle tonight, all the stars of the Winter Circle (sometimes called the Winter Hexagon) are first-magnitude stars, so they should be able to withstand tonight’s drenching moonlight. Note also that the Winter Triangle – formed by bright stars Sirius, Betelgeuse and Procyon – make up the southeast part of the Winter Circle.
Scientists have located an ancient solar system, dating back to the dawn of the galaxy, which appears to be a miniature version of the inner planets in our own solar system.
Distinctive underwater sounds announce the birth of an iceberg, say researchers. In a recent study, scientists used underwater microphones aboard buoys to record a variety of iceberg births at the Hans Glacier in Svalbard, Norway during three days in August 2013. These recordings were combined with time-lapse photos of the glacier during the same time period.
Fascinating news this month about asteroid 4 Vesta – fourth asteroid to be discovered and second-most-massive asteroid after the dwarf planet 1 Ceres. NASA’s Dawn spacecraft visited Vesta from 2011 to 2013, and the new study is based on evidence from Dawn. The new study shows that – although Vesta was once assumed to be completely dry, incapable of retaining water because of the low temperatures and pressures at its surface – there’s evidence that Vesta may have had short-lived flows of water-mobilized material on its surface. Wow, yes?