Dale Andersen
@daleandersen
Polar Limnologist Carl Sagan Center, SETI Institute Exploring Life in Extreme Environments Understanding Early Earth & Early Mars Views are My Own EC FN82
If life was present on early Mars, was it able to harness the energy of the sun? Were those early cells able to construct Large Conical Stromatolites, as they were on early Earth? #CountdownToMars #biosignatures #earlyEarth #Mars

One of our local science partners recently used AGU’s op-ed toolkit to help shape their message — and it paid off big time: their op-ed was published in the @LATimes . 📰 👏 Read David L. Valentine’s important piece on research funding: 🔗 latimes.com/opinion/story/…
I wish people could understand that the ocean is not just a massive amount of salt water, but rather it's a living system. What we put into the ocean changes the chemistry of not just the ocean, but of the planetary functions as a whole. @TIME time.com/7290408/sylvia…
Molecular fossils offer first glimpse of how life survived Snowball Earth | Science | AAAS science.org/content/articl…
Congressional spending panels continue to push back against proposed Trump research cuts science.org/content/articl… #NASA #NSF #NIH #NIST #NOAA
National Academies Presidents Express Alarm Over Unnecessary Suffering and Deaths Caused by Measles Outbreak; Call for Widespread Sharing of Evidence-Based Information on Vaccine Safety and Effectiveness nationalacademies.org/news/2025/07/n… via @theNASEM
The Most Beautiful Experiment: Meselson and Stahl:youtu.be/7-tnuAqEp9g?si…
Frank Stahl, molecular biologist led a remarkable life devoted to discovery. His work, with Matthew Meselson is a powerful reminder of how fundamental scientific research drives our understanding of the world.
Franklin W. Stahl, a molecular biologist who helped create a methodology to confirm how DNA replicates so elegant that the research has been remembered for more than five decades as “the most beautiful experiment in biology,” has died at 95. nyti.ms/44Qs9kH
Congressional Event: A Science Fair of Canceled Grants nasawatch.com/congress/congr… Media advisory: On Tuesday, July 8, from 11:00 a.m. to 2:00 p.m. in the Rayburn House Office Building Foyer (Rayburn Foyer) the House Committee on Science, Space, and Technology – Democrats will host…
Hundreds of employees at the EPA have released a “Declaration of Dissent,” accusing EPA officials of politicizing the agency and undermining its core mission to “protect human health and the environment.” scim.ag/3GiGBss
From ripped parachutes to fuzzy camera feeds, geologist Steve Squyres and his NASA team had to tackle countless problems to land two rovers on Mars. Hear how he risked his career—and millions of dollars—in Ep. 7 of “The Leap,” a @HypothesisFund project with SciFri.
Of course no @NASA protest is complete without a jumbo PowerPoint chart
The former NSF building will be turned into HUD office space and will have an executive suite for Turner, the construction of a new executive dining room, exclusive use of one elevator for Turner, and a gym for Turner and his family. eos.org/research-and-d…
Every few minutes, a dragonfly dives into water and takes off again, turning several forward somersaults as it ascends. The purpose of the behavior? The quick dip cools the insect down, and the loop-the-loops help it dry off by flicking away the water. Learn more during…
Exciting news! 🪨 @uOttawa's Prof. Jonathan O'Neil and his team have confirmed that northern Quebec is home to the oldest known rocks on Earth, dating back 4.16 billion years! @uOttawaScience 👉bit.ly/4ntCvhY
"We’re back to tracking hurricanes like it’s 1999. Except this isn’t a party. And people could die." My latest column for @nbc6 is about the latest blow of this country's incomprehensible affront to #science since January. nbcmiami.com/news/local/joh…
It's a pretty dark time at the nation's space agency. arstechnica.com/space/2025/06/…
If all you space/science organizations would simply follow and crosspost each other's stuff there'd be enhanced awareness on everyone's part WRT science funding legal cases, congressional visits, briefings, etc. No one organization or their associated celebrities is going to save…
Roman comes together at Goddard. A quiet act of hope— science in service to all of us.@astrobiology @NASAGoddard
Take a look at these highlights from the past few months! Roman is quickly coming together at @NASAGoddard, and later this year, the entire observatory will be integrated and ready for final testing before heading to @NASAKennedy next summer for launch, no later than May 2027.…
There will be a "Stop the NASA Budget Cuts Protest event" in Cleveland on 21 June - more info: actionnetwork.org/events/stop-th… - The folks at @NASAGlenn are taking Janet Petro's advice and will #EmbraceTheChallenge of job loss at @NASA
ICYMI this is what happens to the @NASA search for exoplanets and habitable worlds in the FY 2026 White House budget request for #NASA. #astrobiology #astronomy #exoplanet