The amazing Shana Priwer and I are excited to announce the publication of our latest book! Physics 1 for Dummies (4th edition) is now available in bookstores & online. This is a great supplement to your student's high school physics class, or a fun refresher on motion & forces & pressure.

Gorgeous view of the NASA SpaceX Crew-11 reentry from my driveway in Southern California tonight!

Resharing a fun, recent conversation!

Curious about Europa Clipper's observations of interstellar comet 3I/ATLAS? Come hear me talk about them in this @setiinstitute.bsky.social livestream today at 2:30 PT / 5:30 ET! youtube.com/live/cXqwsc2...

Awesome picture of interstellar comet 3I/ATLAS as taken by a spacecraft orbiting Mars!

NASA’s fleet of Mars spacecraft will attempt observations of 3I/ATLAS as it passes by Mars on October 3! Stay tuned for results.

Along with my day job at JPL, I’ve been busy the last several months writing Physics I For Dummies 4th Edition, and I wanted share that Barnes & Noble is running a 25% off campaign for members for all pre-orders, including my book! Sale goes thru 9/5. www.barnesandnoble.com/w/physics-i-...

Europa Clipper observes…. Mars? Yes, on its cruise to the Jupiter system, Europa Clipper swung by Mars for a gravity assist and captured this cool image of Mars and its two tiny moons.

Four charts showing the extent of cuts to NASA in the FY26 budget: - Cuts to every science division - Smallest science funding since 1984 - 19 active, inflight missions cancelled - Smallest NASA budget since FY 1961

BREAKING: The president's budget request just hit Congress, which could usher in a dark age for NASA space science. Congress has the final say, but you can help shape the outcome by adding your name to our global petition. This is just the start of our fight. Sign the petition: planet.ly/petition

Is there potential for life on Jupiter's moon Europa? Let's ask a NASA expert... oh, that's me! #planetsci 🧪🔭 www.youtube.com/watch?v=wfzm...

Next stop for Europa Clipper: Mars??? That’s right, we are doing a rare Mars gravity assist on March 1st to help pick up speed on our journey out to the Jupiter system. More info and cool animations below!

Space science is for everyone!

It was a great pleasure to participate in this video about Europa for Crayola's Creativity Week, up today! The video features myself, Astrobiologist David Grinspoon, @drfunkyspoon.bsky.social, US Poet Laureate Ada Limon, and illustrator Peter Sis! creativity-week.squarespace.com/events-calen...

Want one of those amazing rainbow NASA pins you've seen the cool kids wearing? Here's your chance! Contribute to help get pins made for distribution at conferences, or to get your own bag of pins (choose which design) to distribute as you wish.

Can’t we please live in precedented times for awhile? Evacuated from the latest LA fire yesterday, back home safe now but this is ridiculous. Picture taken by my neighbor yesterday…

Interested in a paid summer internship working with a member of the Europa Clipper science team? Applications open for undergrads to apply to the Europa ICONS program. Internships available at locations around the US, includes stipend plus housing & travel. Visit science.nasa.gov/planetary-sc...

I gave a talk last week at the @agu.org conference on a fun project I've been working on with some colleagues, including amazing grad student Leah Sacks. We found a dark albedo feature on Saturn's moon Enceladus that we can show is changing over time! Check it out: www.space.com/space-explor...

Awesome news from Europa Clipper, which launched on October 14th. It's already traveled 13 million miles (!), and has successfully deployed its magnetometer boom and radar antennas. Next stop is a Mars flyby on March 1st! www.jpl.nasa.gov/news/nasas-e...

Heading over here from <waves hands> everywhere else. And hey, check out my most recent book Astrophysics for Dummies! www.amazon.com/Astrophysics...