Ad Astra
Kristian von Bengtson
Copenhagen Suborbitals 2012 in Review
Ad Astra Kristian von Bengtson
Kristian von Bengtson is a space-architect, former contractor for NASA and co-founder of Copenhagen Suborbitals. He is only satisfied if a challenge is close to impossible. ... Read More
The Physics of the Northern Lights
Solar winds at a million miles an hour and freaky magnetic turbulence are sparking some of the best light shows in centuries.
How Do Metal Detectors Work?
What sneaky invisible forces enable these instruments to locate buried treasure?
Maeving’s RM2 Electric Motorcycle Can Carry a Passenger Along With Bags of Style
Oozing with flair, and now a little more practical—it’s hard not to love Maeving’s latest ride.
How to Follow the Trajectory of Comet 3I/Atlas
The interstellar comet 3I/Atlas reached its closest point to the sun. Here's how to follow the rest of its journey away from our solar system.
Tesla Shareholders Approve Elon Musk’s $1 Trillion Pay Package
The unprecedented payday will go into full effect by 2035—as long as Tesla hits ambitious financial and production targets.
Is a Robot Vacuum Worth It?
It’s not for everyone, but sometimes my robot vacuum is my only friend.
The First Radio Signal From Comet 3I/Atlas Ends the Debate About Its Nature
An observatory detected the first radio signal from the interstellar object 3I/Atlas. Here’s what it means.
In Orbit You Have to Slow Down to Speed Up
Driving a spacecraft around a planet isn’t anything like driving on a planet. A physicist explains orbital navigation.
Nike’s Robotic Shoe Gets Humans One Step Closer to Cyborg
Project Amplify is Nike’s latest attempt to put some spring in your step with help from a powered mechanism that enhances the natural movement of the human ankle and lower leg.
Rivian’s Spinoff Company—Also—Made a Modular, Affordable Electric Bike
Preorders are open now for the Also TM-B ebike, which starts at $4,000. It ships next year.
How to Keep Squirrels Off Your Bird Feeder
Whether you’re new to feeding birds or have been at your wits’ end for years, here are some tried-and-true tips on how to foil these wily rodents.
Can a Hydroelectric Dam Really Make the Days Longer?
By shifting water to a higher elevation, the giant Three Gorges Dam caused the Earth to spin more slowly.