As a wise man once said, “I don’t like sand. It’s coarse and rough and irritating – and it gets everywhere”. The same could be said for another material in our solar system – dust.
The kind of dust present on the moon is even more annoying than the grains that bothered Anakin Skywalker on Tatooine. It is constantly bathed in solar radiation, smells like spent gunpowder, and can cause allergic reactions, as it did in some of the Apollo astronauts. It’s also notoriously difficult to clean off of surfaces. Now a team of scientists at the University of Colorado at Boulder think they have a solution that would remove lunar dust without harming the material it’s attached to. And they would do this by using a tool that sounds like it’s straight out of Star Wars – an electron beam.
Continue reading “Finally! A Solution to Deal With Sticky Lunar Dust”
If we want to travel to the stars, we’re going to have to be creative. Conventional rockets aren’t nearly powerful enough to allow us to journey across light-years in a reasonable time. Even nuclear rockets might not be enough. So what’s humanity to do? The answer could be a light sail.
Continue reading “One Step Closer to Interstellar Travel. A Successful Microgravity Test of a Graphene Light Sail”
Ten months in space!
The Planetary Society’s LightSail 2 spacecraft just reached that milestone. And the fine folks at the Society have released a bunch of new pictures from the spacecraft. Ten of them, in fact. One for each successful month.
Continue reading “New Photos From LightSail 2”
One of the biggest challenges of working and living in space is the threat posed by radiation. In addition to solar and cosmic rays that are hazardous to astronauts’ health, there is also ionizing radiation that threatens their electronic equipment. This requires that all spacecraft, satellites, and space stations that are sent to orbit be shielded using materials that are often quite heavy and/or expensive.
Looking to create alternatives, a team of engineers came up with a new technique for producing radiation shielding that is lightweight and more cost-effective than existing methods. The secret ingredient, according to their recently-published research, is metal oxides (aka. rust). This new method could have numerous applications and lead to a significant drop in the costs associated with space launches and spaceflight.
Continue reading “A New Technique to Make Lighter Radiation Shielding For Spacecraft: Rust.”
Picture the space around Earth filled with tens of thousands of communications satellites. That scenario is slowly coming into being, and it has astronomers concerned. Now a group of astronomers have written a paper outlining their detailed concerns, and how all of these satellites could have a severe, negative impact on ground-based astronomy.
Continue reading “Astronomers Have Some Serious Concerns About Starlink and Other Satellite Constellations”
The Woods Hole Oceanographic Institution (WHOI) says their underwater robot has just completed the first-ever automated underwater sampling operation. The robot is called Nereid Under Ice (NEI) and it collected the sample in Greece. WHOI is developing Nereid in association with NASA’s Planetary Science and Technology from Analog Research (PSTAR) program.
Continue reading “Underwater Robot Captures its First Sample 500 Meters Below the Surface of the Ocean”
There’s a disturbing lack of hibernation in our space-faring plans. In movies and books, astronauts pop in and out of hibernation—or stasis, or cryogenic sleep, or suspended animation, or something like it—on a regular basis. If we ever figure out some kind of hibernation, can we take advantage of it to get by with smaller spacecraft?
The European Space Agency (ESA) is working to answer that question.
Continue reading “If Astronauts Hibernated on Long Journeys, They’d Need Smaller Spacecraft”
Venus is colloquially referred to as “Earth’s Twin”, owing to the similarities it has with our planet. Not surprisingly though, there is a great deal that scientists don’t know about Venus. Between the hot and hellish landscape, extremely thick atmosphere, and clouds of sulfuric rain, it is virtually impossible to explore the planet’s atmosphere and surface. What’s more, Venus’ slow rotation makes the study of its “dark side” all the more difficult.
However, these challenges have spawned a number of innovative concepts for exploration. One of these comes from the University of Buffalo’s Crashworthiness for Aerospace Structures and Hybrids (CRASH) Laboratory, where researchers are designing a unique concept known as the Bio-inspired Ray for Extreme Environments and Zonal Explorations (BREEZE).
Continue reading “Stingray Glider to Explore the Cloudtops of Venus”
The UK aerospace company Reaction Engine Limited was founded in 1989 for the express purpose of creating engines that would lead to spaceplanes capable of horizontal take-off and landing (HOTOL). With support from the ESA, these efforts have resulted in the Synergetic Air-Breathing Rocket Engine (SABRE). Once complete, this system will combine elements of jet and rocket propulsion to achieve hypersonic speeds (Mach 5 to Mach 25).
Recently, Reaction Engines passed a major milestone with the development of their SABRE engine. As the company announced earlier this week (on Tues. Oct. 22nd), their engineers conducted a successful test of a vital component – the engine’s heat exchange element (aka. precooler). What’s more, the test involved airflow temperatures equivalent to speeds of Mach 5, which is in the hypersonic range.
Continue reading “Skylon’s SABRE Engine Passes a Big Test”
A Chinese company is planning to launch a rocket with a reusable booster in 2021. The company is called i-Space, and the rocket is called Hyperbola-2. They’ve already developed and launched another rocket, called Hyperbola.
Continue reading “A Private Company in China Plans to Launch Reusable Rockets by 2021”