If the Roman Empire had been able to launch a satellite in a relatively high Low Earth Orbit – say about 1,200 km (750 miles) in altitude – only now would that satellite be close to falling back to Earth. And if the dinosaurs had launched a satellite into the furthest geostationary orbit – 36,000 km (23,000 miles) or higher — it might still be up there today.Continue reading “How Long Will Space Junk Take to Burn Up? Here’s a Handy Chart”
In 1999, technicians from the California Polytechnic State University (Cal Poly) and Stanford University developed the specifications for CubeSat technology. In no time at all, academic institutions were launching CubeSats to conduct all manner of scientific research and validate new satellite technologies. Since 2013, the majority of launches have been conducted by commercial and private entities rather than academia.
Unfortunately, CubeSats have been held back until now because of a lack of good propulsion technology. In addition, there are concerns that with the proliferation of small satellites, Low Earth Orbit (LEO) will become overcrowded. Thanks to Howe Industries and a breakthrough engine design (known as the ThermaSat) that utilizes steam to generate propulsion, all of that could change very soon.Continue reading “A Steampunk Engine to Solve Your Satellite Woes!”
Science fiction space movies can do a poor job of educating people about space. In the movies, hot-shot pilots direct their dueling space ships through space as if they’re flying through an atmosphere. They bank and turn and perform loops and rolls, maybe throw in a quick Immelman, as if they’re subject to Earth’s gravity. Is that realistic?
In reality, a space battle is likely to look much different. With an increasing presence in space, and the potential for future conflict, is it time to think about what an actual space battle would look like?Continue reading “What Would a Realistic Space Battle Look Like?”
Satellite engineers know what every photographer knows: get close to your subject to get better pictures. Not just visible light pictures, but all across the spectrum. The lower altitude also improves things like radar, lidar, communications, and gps.
But when your subject is Earth, and Earth is surrounded by an atmosphere, getting closer is a delicate dance with physics. The closer a satellite gets to Earth, the more atmospheric drag it encounters. And that can mean an unscheduled plummet to destruction for Earth-Observing (EO) satellites.Continue reading “Earth Observation Satellites Could be Flown Much Lower than Current Altitudes and Do Better Science”
The United States and Russia/USSR have been adversaries for a long time. Their heated rivarly stretches back to the waning days of WW2, when the enormous Red Army was occupying large swathes of eastern Europe, and the allies recognized the inherent threat.
The US won that race, but the rivalry didn’t cool down.Continue reading “Russia Just Tested an Anti-Satellite Weapon”
Like all other technologies, satellite technology has grown in leaps and bounds in the past couple decades. Satellites can monitor Earth in increasingly high resolutions, aiding everything from storm forecasting, to climate change monitoring, to predicting crop harvests. But there’s one thing still holding satellites back: altitude.Continue reading “This is What an Air-Breathing Electric Thruster’s Intake Would Look Like”
Poor, dim-witted humanity.
We used to think we were the center of everything. That wasn’t that long ago, and even though we’ve made tremendous advancements in our understanding of our situation here in space, we still have huge blind spots.
For one, we’re only now waking up to the reality of interstellar objects passing through our Solar System.Continue reading “A Cool Idea to Catch Up With an Interstellar Visitor”
Soon, astronomers and astrophysicists will have more observing power than they know what to do with. Not only will the James Webb Space Telescope one day, sometime in the next couple years, we hope, if all goes well, and if the coronavirus doesn’t delay it again, launch and begin operations. But another powerful NASA space telescope called WFIRST has passed an important stage, and is one step closer to reality.Continue reading “WFIRST Passes an Important Milestone, it’s Time to Begin Development and Testing”
SpaceLogistics LLC has achieved a first: it’s docked it’s maintenance satellite, called MEV-1, with another satellite in order to extend the life of the satellite. The docked pair will perform some check-ups, and if all goes well, MEV-1 will boost the client satellite to a higher orbit, extending its operational life-span by about five years.Continue reading “A Commercial Satellite Just Docked with Another for the First Time, Opening Up a New Era in Orbital Maintenance”
The Sun is not exactly placid, though it appears pretty peaceful in the quick glances we can steal with our naked eyes. In reality though, the Sun is a dynamic, chaotic body, spraying out solar wind and radiation and erupting in great sheets of plasma. Living in a technological society next to all that is a challenge.Continue reading “ESA is Considering a Mission to Give Advanced Warnings of Solar Storms”