This is another weird week for space news, where it felt like human space exploration was going to steal every headline. We saw the successful return to Earth of Boeing’s Starliner capsule, the successful launch of Polaris Dawn and what appears, at the time of this recording on the morning of Sep 12, the successful space walk of non-NASA astronauts. As we look at all these headlines, it’s important to remember that today’s spending on human space flight is motivated by both a modern Lunar Space Race, and the desire of billionaires to colonize Mars. These adventures in human exploration build...
Small star hosts (smaller) huge planet
Artistic rendering of the possible view from LHS 3154b towards its low mass host star. Given its large mass, LHS 3154b probably has a Neptune-like composition. Credit: Penn State Solar systems keep finding new ways to surprise us and to convince us that we don’t...
Six planets in coordinated orbits
https://youtu.be/KfZCGBhwpes In my personal opinion, one of the mathematically coolest things in our solar system is the orbits of Jupiter's three inner Galilean moons. It just happens, that these worlds orbit to a beat, with innermost Io circling four times for every...
Closer Look: Planetary Formation Through the Years
Credit: NASA Sometimes, our place in the universe really messes with our ability to understand the universe. From wanting life to be Earth-like, to wanting alien solar systems to look like our solar system, it turns out our wants can bias how we try to science...
You can visit a piece of Bennu
Credit: NMNH We would be remiss if we didn’t update you all on the Bennu sample return mission. As of writing, no word has been released on if the science team has managed to get the TAGSAM capsule open, yet. Remember how that boop became a shove and the capsule had...
Lucy finds a moonmoon
Credit: NASA/Goddard/SwRI/Johns Hopkins APL Last episode, we brought you some early science results from the Lucy mission, which is out exploring asteroids in the main belt on the way to hanging out amongst Jupiter’s Trojan asteroids. The biggest piece of news was the...
Mars quakes, ices, and places for …biosignatures?
Credit: NASA While asteroids are proving themselves more complicated than we expected, Mars, in a fit of publications, is also demanding attention for all its icy complexity. Back in May 2022, the Insight lander recorded a Marsquake with a magnitude of 4.7. While not...
Lucy Sends Science Home
Credit: NASA Back in October 2021, a mission called Lucy lifted off on a multi-year journey to visit Jupiter’s two collections of Trojan Asteroids. Today, it is making its way through the asteroid belt before circling back to use the Earth to get a gravitational...
Beating up rocks reveals possible origin of Ceres organics
Credit: NASA / Johns Hopkins University Applied Physics Laboratory. Once upon a time, we thought asteroids were just bland rocks. Turns out, if you actually look at them from up close, they are complex and interesting. When the Dawn mission visited the largest...
It’s a world, it’s a math error, it’s … new physics?
Credit Katherine Brown & Harsh Mathur When I was little, I was totally into all those “In Search of…” shows. There are so many cool mysteries in history waiting to be solved, and I love that I’ve gotten to see some of these great mysteries get solved. The giant...
(Big-)Moonless worlds have unstable tilts
Modern-day Mars experiences cyclical changes in climate and, consequently, ice distribution. Unlike Earth, the obliquity (or tilt) of Mars changes substantially on timescales of hundreds of thousands to millions of years. At present day obliquity of about 25-degree...