Dr Jamie Jasinski et al. identified enhancements of neutral particles from Mercury's exosphere at high altitudes in MESSENGER data. This can only be explained by a micrometeroid impacting the surface of #Mercury! #AGU20

Very cool press release from Johns Hopkins APL about our work, Jim Raines Tom Nordheim Andrew Coates NASA JPL Mercury Exploration Assessment Group (MExAG) jhuapl.edu/NewsStory/2101…

Hello, world. My first look at my forever home. #CountdownToMars

How does the mRNA COVID vaccine work?

Our recent study understanding flux ropes at Saturn's dayside magnetopause was recently published in AGU (American Geophysical Union) JGR: Space Physics Journal at doi.org/10.1029/2020JA… Andrew Coates NASA JPL U-M Climate & Space

Temperature isn't the only thing changing during the seasons...Dr Jamie Jasinski et al. analyzed how the amount of sodium lost due to photoionization varies throughout a year on #Mercury using @INSU_CNRS #Themis telescope and MESSENGER data. Read on: doi.org/10.1029/2021GL…

I need to permit myself a little self-promotion.... my first first-author paper has recently been accepted to JGR Space Physics! Typeset and formatted version coming soon :D agupubs.onlinelibrary.wiley.com/doi/abs/10.102… #Jupiter #EuropaMoon

Ever wondered what processes produce Mercury's sodium exosphere? Check out the schematic from a paper I led that has now been published in GRL which discusses the exosphere and the role of photoionization. Paper link: agupubs.onlinelibrary.wiley.com/doi/10.1029/20… Mercury Exploration Assessment Group (MExAG) NASA JPL LASP

A great paper I had the pleasure to co-author, led by Diego Janches NASA Goddard

Check out my 3 talks at AGU this year: SM53C-04: Photoionization at Mercury's Exosphere SM43B-01: Reconnection at Saturn P52B-09: Neptune's pole-on magnetosphere Can I now call myself a collector of planets? 😂

Planetary Decadal Survey is out and recommends Uranus Orbiter+Probe as #1 priority. science.org/content/articl…

Part of the Planetary Environments corridor now features 3 completed #Mercury geological maps by The Open University: School of Physical Sciences and 3 by our Italian colleagues. 3 more are underway here PlanMap Bepi

First look at the Solar System's innermost planet from today's #MercuryFlyby, including the recently named "Challenger Rupes" in anticipation of the scarp being well seen this flyby 🤩 esa.int/ESA_Multimedia… #ExploreFarther

A reanalysis of the 1986 Voyager 2 flyby of Uranus shows that it occurred during an extreme compression of the planet’s magnetosphere by the solar wind. This would have had significant effects on the measurements made during the flyby. Dr Jamie Jasinski et al.: nature.com/articles/s4155…

When Voyager 2 flew past Uranus in 1986, the planet's magnetosphere seemed super weird. There was no plasma, and the radiation belts were mega intense. Now we might know why, because of rare solar activity hitting the planet. Story by me The New York Times nytimes.com/2024/11/11/sci…

When ARCHIVED - NASA Voyager 2 flew by Uranus in 1986, it provided our first — and, so far, only — close glimpse of this strange outer planet. Scientists are still analyzing the data from that flyby, and one researcher recently found a surprise: go.nasa.gov/3YIaLKD

My excellent friend Dr Jamie Jasinski discovered that lots of Uranus's mysterious behaviour that we've talked about for decades, based on Voyager 2s flyby, happened during really extreme solar wind conditions. It's out today here: nature.com/articles/s4155… . May be some news coverage.

Scientists are mining the mysteries of Uranus. (Yeah, we said it.) Almost 40 years ago, ARCHIVED - NASA Voyager got a close look at Uranus for the first time—but a new analysis is helping explain a few of the planet's unexplained oddities: go.nasa.gov/3UPkZrD

A nice summary of our paper that came out last month!