Using data from several instruments onboard Rosetta, CASTRA’s team has modeled the properties of cometary dust in the environment of Comet 67P. Image credit – ESA/Rosetta/NAVCAM As anyone who has ever tried to clean a home knows, ridding yourself of dust is a Sisyphean effort. No surface stays free of […]

The US Defense Advanced Research Projects Agency (Darpa) has recently commissioned three private companies, Blue Origin, Lockheed Martin and General Atomics, to develop nuclear fission thermal rockets for use in lunar orbit. Such a development, if flown, could usher in a new era of spaceflight. That said, it is only one of […]

Saturn’s moon Enceladus, with its geysers of water (artist’s illustration), could be the target for a future European flagship mission. EUROPEAN SPACE AGENCY/SCIENCE OFFICE The biggest space missions gestate for the longest time. Today, the European Space Agency (ESA) revealed the three broad science themes it wants to pursue for […]

The EnVision mission to Venus will explore why Earth’s closest neighbor is so different. Credit: NASA / JAXA / ISAS / DARTS / Damia Bouic / VR2Planets EnVision will be ESA’s next Venus orbiter, providing a holistic view of the planet from its inner core to upper atmosphere to determine […]

Astronomers have spotted a giant ‘blinking’ star towards the center of the Milky Way, more than 25,000 light years away. An international team of astronomers observed the star, VVV-WIT-08, decreasing in brightness by a factor of 30, so that it nearly disappeared from the sky. While many stars change in […]

Perseverance’s Mastcam-Z imaging system captured this 360-degree panorama at “Van Zyl Overlook,” where the rover parked during Ingenuity helicopter’s first flights. The full 2.4-billion-pixel panorama consists of 992 images stitched together. Credit: NASA/JPL-Caltech/ASU/MSSS The six-wheeled scientist is heading south to explore Jezero Crater’s lakebed in search of signs of ancient […]

Supermassive black holes (SMBH) occupy the center of galaxies, with masses ranging from one million to 10 billion solar masses. Some SMBHs are in a bright phase called active galactic nuclei (AGN). AGNs will eventually burn out since there is a maximum mass limit for SMBHs; scientists have long since […]