Something big is about to happen on the sun. According to measurements from NASA-supported observatories, the sun's vast magnetic field is about to flip. "It looks like we're no more than 3 to 4 months away from a complete field reversal," says solar physicist Todd Hoeksema of Stanford University. "This change will have ripple effects throughout the solar system."
The Curiosity rover is seeking environments on Mars that could support life—or could have in the past. Earlier Mars missions found signs of water, but not organic carbon—life's essential building block. Watch the Curiosity team prepare to hunt for carbon at Mount Sharp, which holds a geologic record hundreds of millions of years old.
Science Bulletins is a production of the National Center for Science Literacy, Education, and Technology (NCSLET), part of the Department of Education at the American Museum of Natural History.
From AGI Public Relations (Alexandria, VA) - Scientists have recently confirmed the existence of an impact crater buried below the town of Decorah, Iowa. Scientists first discovered what they thought resembled a crater in 2008, but now it has been corroborated by an airborne geophysical survey. Scientists estimate the diameter of the crater at 5.5 kilometers wide, nearly five times the size of the Barringer Meteor Crater in Arizona.
The Mars rover Curiosity is currently traveling the surface looking for past habitable environments. In 2020, a new Martian rover will look for signs of past life, collect samples for possible future return to Earth, and demonstrate technology for future human exploration of the Red Planet.
Learn more from the video below and the following links:
You have probably heard of Alpha Centauri and Proxima Centauri, the closest known stars to the Sun. About 100 years ago, Barnard's Star was discovered to be only about 1.5 light years further from us than the Alpha Centauri system. Just recently, though, a Penn State astronomer discovered the third closest star system to the Sun, but this time, instead of normal stars, this system includes "brown dwarfs", which are sometimes referred to as "failed stars".
With the predicted brush with an asteroid later tonight, people in Russia got quite the scare this morning. (see links below)
Incredible videos captured the exploding meteorite.
Water existing on Mars is not anything new to report, but how about liquid (not frozen) water that is flowing today (not millions/billions of years ago)? Scientists have found that the relatively warmer summer Martian months cause liquid water to flow on the surface.