UArizona Students Confirm Errant Rocket’s Chinese Origins and Track Lunar Collision Course

A high-definition image of the Mars Australe lava plain on the Moon taken by Japan’s Kaguya lunar orbiter in November 2007. (Credit: JAXA/NHK)

TUCSON, Ariz. (University of Arizona PR) — The presumed SpaceX Falcon 9 rocket booster that’s on a course to hit the moon March 4 is actually a Chinese booster from a rocket launch in 2014, a University of Arizona team has confirmed.

UArizona students in the university’s Space Domain Awareness lab at the Lunar and Planetary Laboratory have had their eyes on the piece of space junk for weeks as they studied its rotation. They have been gathering other data as well, which they used to confirm its Chinese origin.


NASA Mission Helps Solve a Mystery: Why Are Some Asteroid Surfaces Rocky?

Closeup of the rocky surface of the Bennu asteroid. (Credits: NASA/Goddard/University of Arizona)

by Mikayla Mace Kelley
The University of Arizona

Scientists thought Bennu’s surface was like a sandy beach, abundant in fine sand and pebbles, which would have been perfect for collecting samples. Past telescope observations from Earth had suggested the presence of large swaths of fine-grained material smaller than a few centimeters called fine regolith.  But when NASA’s OSIRIS-REx mission arrived at Bennu in late 2018, the mission saw a surface covered in boulders. The mysterious lack of fine regolith became even more surprising when mission scientists observed evidence of processes potentially capable of grinding boulders into fine regolith.


Highly Porous Rocks Responsible for Bennu’s Surprisingly Craggy Surface

During fall 2019, NASA’s OSIRIS-REx spacecraft captured this image, which shows one of asteroid Bennu’s boulders with a bright vein that appears to be made of carbonate. The image within the circle (lower right) shows a focused view of the vein. (Credits: NASA/Goddard/University of Arizona)

TUCSON, Ariz. (University of Arizona PR) — Scientists thought asteroid Bennu’s surface would be like a sandy beach, abundant in fine sand and pebbles, which would have been perfect for collecting samples. Past telescope observations from Earth’s orbit had suggested the presence of ­­large swaths of fine-grain material called fine regolith that’s smaller than a few centimeters.


Asteroid 16 Psyche Might Not Be What Scientists Expected

Artist rendition of the asteroid Psyche. (Credit: Peter Rubin/ASU)

New UArizona research finds that the target asteroid of NASA’s Psyche mission may not be as metallic or dense as previously predicted.

By Mikayla Mace Kelley
University of Arizona Communications

The widely studied metallic asteroid known as 16 Psyche was long thought to be the exposed iron core of a small planet that failed to form during the earliest days of the solar system. But new University of Arizona-led research suggests that the asteroid might not be as metallic or dense as once thought, and hints at a much different origin story.

Scientists are interested in 16 Psyche because if its presumed origins are true, it would provide an opportunity to study an exposed planetary core up close. NASA is scheduled to launch its Psyche mission in 2022 and arrive at the asteroid in 2026.


Where Rocks Come Alive: OSIRIS-REx Observes an Asteroid in Action

This mosaic image of asteroid Bennu is composed of 12 PolyCam images collected on Dec. 2, 2018, by the OSIRIS-REx spacecraft from a range of 15 miles (24 km). (Credits: NASA/University of Arizona)

TUCSON, Ariz. (University of Arizona PR) — It’s 5 o’clock somewhere. And while here on Earth, “happy hour” is commonly associated with winding down and the optional cold beverage, that’s when things get going on Bennu, the destination asteroid of the University of Arizona-led OSIRIS-REx NASA mission.


Queen’s Brian May Works to Probe Origin of Asteroids

Brian May (Credit: ESA)

NICE, France (ESA PR) — Queen guitarist and astrophysicist Brian May has teamed up with asteroid researchers to investigate striking similarities and a puzzling difference between separate bodies explored by space probes. The research team ran a supercomputer-based ‘fight club’ involving simulated large asteroid collisions to probe the objects’ likely origins. Their work is reported in Nature Communications.