The dust trap provides a safe haven for tiny particles in the disk of this young star, allowing the particles to clump and grow, ultimately to become comets, planets and moons.
ESA has released two new images of Kasei Valles, an ancient vast flood plain on Mars. Mars Express spacecraft, launched 10 years ago this week, acquired them.
Using the new wide-field camera at the WIYN 3.5 meter telescope, astronomers have found that the peculiar asteroid P/2010 A2's tail is much longer than previously supposed.