Caleb Scharf🌎 @caleb_scharf
Thinker, writer, sometimes both at the same time. Senior Scientist for Astrobiology @NASAAmes. Personal account, anything expressed here is my fault alone. calebscharf.com New York/Mountain View Joined November 2010-
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Caleb Scharf🌎 retweeted
A new 5-year mission begins! I'm so grateful to everyone at @NASAAstrobio for this opportunity to advance our search for life in the universe with @caleb_scharf and our team of amazing colleagues at @carnegiescience, @NASAAmes, and beyond!
A new 5-year mission begins! I'm so grateful to everyone at @NASAAstrobio for this opportunity to advance our search for life in the universe with @caleb_scharf and our team of amazing colleagues at @carnegiescience, @NASAAmes, and beyond!
My new paper on lightweight deep learning and planetary science imaging is now available in its final published form at the journal Icarus as a freebie for the next 50 days! authors.elsevier.com/a/1lahj_Rp9uTP0
New paper - I've been exploring 'lightweight' deep learning for image reconstruction in planetary science and astrobiology: "The model is the message" arxiv.org/abs/2507.11400
In 1985 Japan became the 3rd nation to launch a deep space probe. The Sakigake probe (and its near-twin Suisei launched months later) were part of the Halley Comet Armada in 1986 #TheGiantLeap tinyurl.com/29j6bktf
In 1918 Emmy Noether published what would come to be known as Noether's Theorem, cementing the universal basis of conservation laws of momentum and energy that are also key for determining how rockets and orbits behave #TheGiantLeap tinyurl.com/29j6bktf
In 1971 Mariner 9 became the first spacecraft to orbit another planet when it arrived at Mars. But a global duststorm meant the mission had to wait until early 1972 before it could properly examine the martian surface #TheGiantLeap tinyurl.com/29j6bktf
In 1903 Konstantin Tsiolkovsky published his work on the "Rocket Equation", relating rocket velocities to propellant and rocket mass and exhaust speed #TheGiantLeap tinyurl.com/29j6bktf
In 1962 the Ranger 3 spacecraft missed the Moon and instead placed a half-meter diameter wooden sphere into orbit around the Sun, where it likely is to this day. #TheGiantLeap tinyurl.com/29j6bktf
If you're interested in #TheGiantLeap you can pre-order now and get 25% off—July 8–11 only. Use the code PREORDER25 at checkout (print, ebook, or audiobook). Must be a B&N Rewards Member—FREE to join. #BNPreorder @BNBuzz @BasicBooks
Really excited to have this wonderful early review of The Giant Leap, coming your way in October! kirkusreviews.com/book-reviews/c…
Caleb Scharf🌎 retweeted
In an early review from @KirkusReviews, THE GIANT LEAP by @caleb_scharf is called "a deeply researched, expertly written account of the fascinating interplay between evolution and exploration." Read the full review ➡️ bit.ly/3Iepete
That moment when you briefly cross over into Last of Us world…
Caleb Scharf🌎 retweeted
How did life begin on Earth? Our Dragonfly mission aims to find clues by exploring Titan, Saturn’s largest moon. As a pristine chemical "laboratory," Titan offers a unique window into the processes that may have led to complex molecules and the first signs of life! More:…
Caleb Scharf🌎 retweeted
It's only fitting our Mars rover has the help of two trusty detectives, SHERLOC and WATSON, to help solve Mars' mysteries! Dive into the tech that makes our search possible here: go.nasa.gov/4jfFxmi
It's only fitting our Mars rover has the help of two trusty detectives, SHERLOC and WATSON, to help solve Mars' mysteries! Dive into the tech that makes our search possible here: go.nasa.gov/4jfFxmi
Caleb Scharf🌎 retweeted
A study in @MicrobiomeJ finds new species of bacteria in NASA’s cleanrooms that can survive extreme conditions similar to those found in space. This may help understand how life might survive on other planets, with new breakthroughs in biotechnology and astrobiology. Read the…
Caleb Scharf🌎 retweeted
Just Another Sunday On Mars astrobiology.com/2025/05/anothe… #astrobiology #Astrogeology #Mars #NASA
Caleb Scharf🌎 retweeted
NASA’s Perseverance rover is exploring “Krokodillen,” a Martian region with ancient rocks rich in clay—key clues to Mars’ watery past and potential life. #Mars #Astrobiology #NASA azorobotics.com/news.aspx?News…
Caleb Scharf🌎 retweeted
What if colors hold the key to finding alien life? Get answers straight from the expert! Dr. Lígia Coelho joins #AskAstrobio live today at 1pm ET to discuss her groundbreaking microbial research and space exploration innovations. Bring your questions & share for a shoutout:…
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