Mercury is small, fast and close to the sun, making the rocky world challenging to visit. Only one probe has ever orbited the planet and collected enough data to tell scientists about the chemistry and landscape of Mercury’s surface. Learning about what is beneath the […]
The giant black hole at the center of a distant galaxy has been spotted taking in gas and letting out two mighty “burps” of high-energy particles, lending support to the theory that such galactic cores go through cycles of messy activity.
An instrument on board the Solar Dynamics Observatory captured NASA’s 100-millionth image of the sun. Four telescopes work parallel to capture eight images of the sun and cycle through 10 different wavelengths every 12 seconds.