The ESA has announced a new mission to explore a comet. The Comet Interceptor mission will have a spacecraft wait in space until a pristine comet approaches the inner Solar System. Then it will make a bee line for it, and do some ground-breaking science.Continue reading “Meet the Comet Interceptor. It’ll Wait Patiently In Space for a Comet, Then Pounce On It”
It seems like the stuff of dreams, the idea that humanity will one day venture beyond the Solar System and become an interstellar species. Who knows? Given enough time and the right technology (and assuming there’s not some serious competition), we might even be able to colonize the entire Milky Way galaxy someday. And while this seems like a far-off prospect at best, it makes sense to contemplate what a process like this would entail.
That’s what a think tank from the ESA’s Advanced Concepts Team (ACT) managed to do recently. As part of the tenth annual Global Trajectory Optimization Competition (GOTC X), they created a simulation that showed how humanity could optimally colonize the Milky Way. This was in keeping with the competition’s theme of “Settlers of the Galaxy“, which challenged teams to find the most energy-efficient way of settling as many star systems as possible.Read more
There’s no denying it, we are facing an orbital debris problem! As of January 2019, the ESA’s Space Debris Office estimates that there are at least 34,000 pieces of large debris in Low Earth Orbit (LEO) – a combination of dead satellites, spent rocket stages, and other assorted bits of space junk. And with thousands of satellites scheduled to be launched in the next decade, that problem is only going to get worse.
This is a situation that cries out for solutions, especially when you consider the plans to commercialize LEO and start sending crewed missions to deep space in the coming years. A team of scientists from the Universidad Carlos III de Madrid (UC3M) has come up with a simple but elegant idea: equip future satellites with a tether system so they can de-orbit themselves at the end of their lives.Continue reading “Satellites Equipped With a Tether Would be Able to De-Orbit Themselves at the end of Their Life”
Whenever scientists announce an upcoming close encounter with an asteroid, certain corners of the internet light up like the synaptic rush that accompanies a meth binge, with panicky headlines shouted straight from the brain stem. But never mind that. We’re not that corner of the internet. We’re sober, yo!Continue reading “Don’t Worry About Asteroid 2006QV89. There’s Only a 1 in 7000 Chance It’ll Hit the Earth in September”
The ESA is developing its own spacecraft capable of re-entry into Earth’s atmosphere. The reusable spacecraft is called the Space RIDER (Reusable Integrated Demonstrator for Europe Return), and the ESA says that the Space Rider will be ready for launch by 2022. It’s being designed to launch on the Vega-C rocket from Europe’s spaceport in Kourou, French Guiana.Continue reading “Europe is Working On a Reusable Space Transport System: Space Rider”
Even after almost three decades of faithful service, the Hubble Space Telescope continues to operate and provide breathtaking images of the cosmos. As one of NASA’s Great Observatories, its observations of distant galaxies, exoplanets, and the expansion of the Universe have had a revolutionary impact on astronomy, astrophysics and cosmology.
Hubble’s latest contribution comes in the form of a deep-sky mosaic image that was constructed using 16 years’ worth of observations. Known as the “Hubble Legacy Field“, this mosaic is being described as the largest and most comprehensive “history book” of galaxies. All told, it contains roughly 265,000 galaxies that date back to just 500 million years after the Big Bang.Continue reading “16 Years of Hubble Images Come Together in this one Picture Containing 265,000 Galaxies”
Remember when Orson Welles’ 1938 radio show called “The War of the Worlds” fooled people into thinking that Earth was actually being invaded? That was fun.
Now, the ESA (European Space Agency) is tempting fate by live-tweeting the hypothetical approach of the hypothetical asteroid 2019PDC and hypothetically planning a hypothetical response to this hypothetically destructive asteroid. In their hypothetical scenario, 2019 PDC has a 1 in 10 chance of striking Earth in 2029. And you can follow the action on Twitter.Continue reading “The World’s Space Agencies are Responding to a Hypothetical Asteroid Impact. You Can Watch it all Unfold Online.”
Black holes, those beguiling singularities that sit on the precipice of the known and the unknown, keep surprising us with their behaviour. As organizations like the Event Horizon Telescope have made clear, there’s a lot we don’t know about the holes, and worse than that, we don’t even know how much we don’t know.
Now scientists have observed a new phenomenon that adds to the black hole mystique: a rapidly spinning black hole that ejects massive blobs of plasma.Continue reading “Rapidly Spinning Black Hole is Spitting Out Blobs of Plasma”
Things are not looking good for Earth’s glaciers. Usually, when it comes to climate change and melting ice, we think of the Earth’s polar regions. But they’re not the only important ice formations, and they’re not the only ice that’s melting due to climate change.Continue reading “The World’s Glaciers are Down by 9 Trillion Tonnes of Ice in the Last Half Century”
If you’re not a chemist, an astrobiologist, or a scientist of any sort, and that includes most of us, then a tiny, almost imperceptible whiff of methane in the Martian atmosphere might seem like no big deal. But it is, gentle humans. It is.
Because it could be a signal that some living process is at work. And even we non-scientists have wondered at some point if the only life in the Solar System, or maybe in the entire Universe, is confined here on Earth.Continue reading “Mars Express Saw the Same Methane Spike that Curiosity Detected from the Surface of Mars”