Mark Hilverda (@markhilverda) header
Mark Hilverda (@markhilverda) profile picture

Mark Hilverda

@markhilverda

Designer & geoscientist who loves space, art & web dev. Digital Specialist for The Planetary Society. Web Manager @AGUPlanetary. Books are beautiful.

 Ontario, Canada
varvestudios.com
Joined November 2008
  • Tweets5.5K
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  • Followers1.3K
1.4KMedia
Photo by Mark Hilverda (@markhilverda)Photo by Mark Hilverda (@markhilverda)Photo by Mark Hilverda (@markhilverda)Photo by Mark Hilverda (@markhilverda)Photo by Mark Hilverda (@markhilverda)Photo by Mark Hilverda (@markhilverda)Photo by Mark Hilverda (@markhilverda)Photo by Mark Hilverda (@markhilverda)Photo by Mark Hilverda (@markhilverda)Photo by Mark Hilverda (@markhilverda)
"Hello darkness, my old friend" A tiny snippet from our new #JWST data, showing a planetary system in the making, floating in space & silhouetted against the bright background light of the Orion Nebula. 1/
A JWST image of the edge-on circumstellar disk Orion 294-606 seen silhouetted against the bright background light of the Orion Nebula.

ALT A JWST image of the edge-on circumstellar disk Orion 294-606 seen silhouetted against the bright background light of the Orion Nebula.

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ATLAS observations of the DART spacecraft impact at Didymos!
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Mark Hilverda retweeted
Jason Davis (@jasonrdavis) profile picture
Jason Davis@jasonrdavis24 Jan 2022
Earth isn't the only place where it snows. Congrats to @PAYOLETTER @whiletruefork and @markhilverda on this awesome feature article: planetary.org/articles/snow-…
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You are so beautiful to me 🎶 I’m getting ready to rove through “Maria Gordon Notch” in the coming sols. I’m traveling to the edge of the valley so I can study the composition of that tall cliff you can see to my right. go.nasa.gov/31BeaBA
Image from ARCHIVED - Curiosity Rover (@MarsCuriosity)
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NASA JPL (@NASAJPL) profile picture
NASA JPL
@NASAJPL20 Jul 2021
The hunt for signs of Martian life has begun for @NASAPersevere. After testing various instruments on its robotic arm, the rover is now probing rocks and dust for evidence of ancient microbial life on Mars. go.nasa.gov/3kEO07V
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Mark Hilverda retweeted
Andrew Jones (@AJ_FI) profile picture
Andrew Jones@AJ_FI11 Jun 2021
So, Zhurong went and placed a remote camera on the ground and then went back towards the lander for this group photo in Utopia Planitia, Chinese flags lined up and all. Quite the effort. [CNSA/PEC]
Image from Andrew Jones (@AJ_FI)
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NASA (@NASA) profile picture
NASA
@NASA2 Jun 2021
In today's #StateOfNASA address, we announced two new @NASASolarSystem missions to study the planet Venus, which we haven't visited in over 30 years! DAVINCI+ will analyze Venus’ atmosphere, and VERITAS will map Venus’ surface.
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Practicing my coordination. I recently docked my arm w/ my “bit carousel” for the first time. This is where I’ll load up drill bits and drop off samples to be processed inside. Important step!
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You wouldn’t believe what I just saw. More images and video to come... #MarsHelicopter go.nasa.gov/ingenuity
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I’m part of a proud lineage of robotic explorers, carrying the torch forward on Mars. This plaque I carry pays tribute to those who’ve gone before me, and to new possibilities ahead. #CountdownToMars mars.nasa.gov/perseverance
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Your front-row seat to my Mars landing is here. Watch how we did it. #CountdownToMars

Perseverance Rover’s Descent and Touchdown on Mars

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An open horizon, with so much to explore. Can’t wait to get going. #CountdownToMars
Image from ARCHIVED - NASA's Perseverance Mars Rover (@NASAPersevere)
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The amazing @HiRISE camera aboard the Mars Reconnaissance Orbiter managed to snap this view of @NASAPersevere during its landing! #CountdownToMars #PerseveranceRover #MarsLanding
Image from Dr. Tanya Harrison (@tanyaofmars)
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Hello, world. My first look at my forever home. #CountdownToMars
Image from ARCHIVED - NASA's Perseverance Mars Rover (@NASAPersevere)
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The transmission of the Hope Probe's first image of Mars is a defining moment in our history and marks the UAE joining advanced nations involved in space exploration. We hope this mission will lead to new discoveries about Mars which will benefit humanity.
Image from محمد بن زايد (@MohamedBinZayed)
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Andrew Jones (@AJ_FI) profile picture
Andrew Jones@AJ_FI5 Feb 2021
We have visual! Here's a first image of Mars from Tianwen-1! Source: mp.weixin.qq.com/s/qy_M1IHgz… (CASC/CNSA)
Image from Andrew Jones (@AJ_FI)
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Well, I definitely touched down on Bennu! Preliminary data show the sampling head touched Bennu’s surface for approximately 6 seconds, within 3 feet (1 meter) of the targeted location. #ToBennuAndBack More details: bit.ly/37ux3GI
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On the set of Star Trek, Captain Janeway gave @theKateMulgrew the greatest gift: a love of space exploration.

Why Star Trek's Kate Mulgrew Loves Space

Science fiction and science fact are often intertwined. As @thekatemulgrew took on the role of Captain Janeway in Star Trek: Voyager, she found a passion for space, science, and exploration.

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What is a planet? The answer is...complicated. Buckle up, friends, and learn a thing or two about how the concept of "planet" evolved from "wandering star" to "geophysical world," and how what is called a "planet" depends on speaker and context. planetary.org/blogs/what-is-…
Image from Emily Lakdawalla (@elakdawalla)
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Mark Hilverda retweeted
Bepi (@ESA_Bepi) profile picture
Bepi
@ESA_Bepi30 Mar 2020
Hello Earthlings, I hope you are all well, probably in self-isolation. I would be so happy if you follow my adventure. This article explains what is going to happen on 10 April. #BepiColomboEarthFlyby esa.int/Science_Exploration/…
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