Over the last month, ESA’s Mars Express has been watching dust storms brew at the planet's north pole and disperse toward the equator.

Move over, Tabby's Star. The Random Transiter may now be the weirdest star in the galaxy. Kepler data revealed 28 transits in front of this star in 87 days. What caused them? Multiple planets? A disintegrating planet? Alien megastructures?

Supercomputer simulations of galaxies show that Einstein’s general theory of relativity might not be the only way to explain how gravity works or how galaxies form. The new Chameleon Theory is a possible alternative.

No, it’s not pseudoscience. Does a regular alignment of planets make a strong-enough tug to regulate the sun’s 11- and 22-year cycles? Read more in this story via Eos - a source for news and perspectives about Earth and space science - from the American Geophysical Union.

Scientists have been trying to figure what creates the so-called "bathtub rings" around lakes and seas on Saturn's large moon Titan. Now they may have an answer: unusual organic crystals not found on Earth.

The rings of the 7th planet, Uranus, are thin and dark. But new thermal images from the ALMA and VLT telescopes show them glowing brightly.

Galaxies are massive and beautiful islands of stars. But did you know that most galaxies are surrounded by halos? A complex instrument on the Very Large Telescope is giving astronomers new views of these galactic rings of light.

"This is the big breakthrough that the field has been waiting for since astronomers discovered fast radio bursts in 2007," one team member said.

The habitable zone is where liquid water can exist. Teegarden's Star's star is only 12.5 light-years from Earth. Astronomers have discovered 2 new Earth-sized exoplanets orbiting in this nearby habitable zone.

DART stands for Double Asteroid Redirection Test. The DART mission is planned for launch in 2021. It'll visit a double asteroid - Didymos and its tiny moon - and crash into the moon in an attempt to change its orbit.