How to Build a Spacecraft to Save the World

How to Build a Spacecraft to Save the World

There are more than a thousand asteroids with diameters larger than Didymos and Dimorphos combined, and if any of those were to strike Earth, it could lead to mass extinction and the collapse of civilization.“Everyone knows it’s possible to hit an asteroid,” says Justin Atchison, a DART mission designer at the Johns Hopkins Applied Physics Laboratory.

The Remarkable Stuff Scientists Get Done as They Work From Home

The Remarkable Stuff Scientists Get Done as They Work From Home

“It may be years before academic research institutions reach a new normal,” the paper concludes.Scientists have redirected their energy toward fighting the novel coronavirus and have shared their data; already over 13,000 papers have been written on the topic, and over 3,000 preprints related to Covid-19 research have been shared on open-access preprint sites like bioRxiv and medRxiv.

No One Knows Why Rocks Are Exploding From Asteroid Bennu

No One Knows Why Rocks Are Exploding From Asteroid Bennu

“No one has ever seen an active asteroid up close like this,” says Carl Hergenrother, an astronomer at the University of Arizona and the scientist who proposed Bennu as the target for OSIRIS-REx.

Could an Astronaut Lost in Space Use Gravity to Get Around?

Could an Astronaut Lost in Space Use Gravity to Get Around?

As part of my introductory physics course, students have to create a numerical calculation to solve a problem.So we can simplify the math by chopping the process up into short time intervals and assuming a fixed force within each increment.

The Plan to Dodge a Killer Asteroid—Maybe Even Good Ol' Bennu

The Plan to Dodge a Killer Asteroid—Maybe Even Good Ol' Bennu

This year, the fictional killer asteroid that got their blood pumping was fake-discovered on March 26, 2019.Somewhere between 100 and 300 meters across, this rock could crash into Earth at several points in the future, most likely on April 29, 2027.

Space Photos of the Week: YORP Effect, Cosmic Ducks, and More

Space Photos of the Week: YORP Effect, Cosmic Ducks, and More

And, still staying within our solar system, we will swing by an asteroid called Gault that is being torn apart by our sun in a fun phenomenon called the YORP effect, or Yarkovsky–O'Keefe–Radzievskii–Paddack, named after the people who discovered it.

Space Photos of the Week: Do You Want to Land on an Asteroid?

Space Photos of the Week: Do You Want to Land on an Asteroid?

OSIRIS-REx will soon enter orbit around the asteroid, where it will spend nearly a year carefully mapping its surface before descending to latch on and collect a sample to bring back to Earth.