Collaborate Disseminate
NASA has given its approval to start construction of a spacecraft that will one day explore the metallic asteroid Psyche, which may represent the exposed metallic core of what was once a Mars-sized planet. The probe is set to launch in August… Continue reading NASA gives go-ahead for mission to explore ancient planet core in asteroid belt
If you thought SpaceX launching 60 Starlink satellites at once was impressive, Cornell University has managed 105 small satellites. The ChipSats, called Sprites, forming a swarm of cracker-sized nanosatellites were deployed from the Kicksat-2… Continue reading Swarm of 105 tiny Sprite ChipSats successfully deployed
Almost 50 years to the day since Neil Armstrong uttered the immortal words “the Eagle has landed” Lego will launch its Creator Expert set of the Eagle Lunar Module to celebrate the anniversary. Developed in cooperation with NASA, the set come… Continue reading Apollo 11 Lunar Lander Lego set marks 50th anniversary of the first men on the Moon
Hundreds of years from now, the story of humanity’s inevitable spread across the solar system will be a collection of engineering problems solved, some probably in heroic fashion. We’ve already tackled a lot of these problems in our first furtive steps into the wider galaxy. Our engineering solutions have taken …read more
Continue reading X-Rays Are the Next Frontier in Space Communications
“If we can’t build something capable of delivering astronomical levels of energy, perhaps we could instead steal the energy from an astronomical object.” Continue reading The ‘Halo Drive’ Would Shoot Lasers at Black Holes to Explore the Milky Way
The popular press was recently abuzz with sad news from the planet Mars: Opportunity, the little rover that could, could do no more. It took an astonishing 15 years for it to give up the ghost, and it took a planet-wide dust storm that blotted out the sun and …read more
Continue reading Engineering for the Long Haul, the NASA Way
On the face of it, powering most spacecraft would appear to be a straightforward engineering problem. After all, with no clouds to obscure the sun, adorning a satellite with enough solar panels to supply its electrical needs seems like a no-brainer. Finding a way to support photovoltaic (PV) arrays of the proper size and making sure they’re properly oriented to maximize the amount of power harvested can be tricky, but having essentially unlimited energy streaming out from the sun greatly simplifies the overall problem.
Unfortunately, this really only holds for spacecraft operating relatively close to the sun. The tyranny of …read more
Continue reading The Deep Space Energy Crisis Could Soon Be Over
Watchdog timers are an often overlooked feature of microcontrollers. They function as failsafes to reset the device in case of a software failure. If your code somehow ends up in an infinite loop, the watchdog will trigger. This is a necessity for safety critical devices. If the firmware in a pacemaker or a aircraft’s avionics system gets stuck, it isn’t going to end well.
In this oldie-but-goodie, [Jack Ganssle] provides us with a great write up on watchdog timers. This tells the story of a failed Clementine spacecraft mission that could have been saved by a watchdog, and elaborates on …read more
One country’s orbital mechanic could be another’s saboteur. Continue reading The Dangerous Downside to DARPA’s New Repair Satellite
“I think the appropriate reaction is ‘mild curiosity’ rather than ‘worry.'” Continue reading This Strange Sensor Russia Sent to the ISS Is Baffling US Military Experts