Topic: Solar Systems
Ep. 3.04 Planning for Asteroid Attacks, Dino Prints Cross Ocean, Viper Updates, & more

Ep. 3.04 Planning for Asteroid Attacks, Dino Prints Cross Ocean, Viper Updates, & more

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...

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Small star hosts (smaller) huge planet

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

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...

You can visit a piece of Bennu

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

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...

Lucy Sends Science Home

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...

(Big-)Moonless worlds have unstable tilts

(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...