Message to Attendees of the 2013 IAA Planetary Defense Conference

The dusty rocks of Jezero Crater are beginning to tell their story – thanks to the seven powerful science cameras aboard Perseverance.

The telescopes found something odd: six "dead" galaxies that had run out of the cold hydrogen gas needed to make stars.

This year, the minimum extent of Arctic sea ice dropped to 1.82 million square miles (4.72 million square kilometers).

The lander cleared enough dust from one solar panel to keep its seismometer on through the summer, allowing scientists to study three big quakes.

NASA's Lucy is set to launch in October on the first mission to study the Trojan asteroids – swarms of asteroids associated with Jupiter.

Researchers will use Webb to observe 17 actively forming planetary systems.