Dale Andersen

Polar Limnologist
Carl Sagan Center, SETI Institute
Exploring Life in Extreme Environments
Understanding Early Earth & Early Mars
Views are My Own EC FN82

[Dale Andersen @daleandersen]

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

[climate.us @climateUS_]

https://t.co/G31ueLvlYl is live. Built by members of the team behind https://t.co/1uFqHpSq32, this new independent nonprofit website keeps trusted climate information easy to find, easy to use, and harder to erase. #ClimateForUs #ClimateUS

[American Physical Society @APSphysics]

What would the proposed OMB rule on federal grant funding mean for the future of science? Dr. Lindsay House explains.

Share your thoughts by submitting a public comment through our action center: https://t.co/NDFg2q7T66

[Chris Hadfield @Cmdr_Hadfield]

Driving the DeepWorker submarine.
In a mountain lake in British Columbia there are strange things growing - colonies of microbes build conical towers we call stromatolites. Same as the oldest fossils on Earth, from 3.5 billion years ago.
It's like diving into the ancient past, measuring the chemistry, trying to understand life itself.
@nuytco @PavilionLake

[The SETI Institute @SETIInstitute]

Dr. Simon Steel is Deputy Director of the Carl Sagan Center for Research at the SETI Institute. As an observational astrophysicist, he specialized in optical spectrophotometry and was interested in the star formation histories of galaxies.

Simon bridges the gulf between the complexities of modern space science and the public fascination with the wonders of the Universe. An award-winning lecturer and teacher, Simon has presented on all aspects of the cosmos, from black holes to aliens to Stonehenge, at museums, universities, NASA centers, and aboard cruise ships.

Not Just Aliens is the SETI Institute’s weekly series featuring scientists exploring astrobiology, heliophysics, planetary science, and more — expanding the search for life beyond Earth.

#Education #PublicOutreach #Space #Science #SETI #NotJustAliens

[National Space Society @nss]

NASAWatch EDITOR KEITH COWING TO RECEIVE NSS SPACE PIONEER AWARD FOR EXCELLENCE IN MASS MEDIA AT ISDC-2026!

Full Press Release:
https://t.co/v1wm5AIozO

@NASAWatch @astrobiology

[National Space Society @nss]

BILL DIAMOND, PRESIDENT & CEO OF THE SETI INSTITUTE, TO KEYNOTE AT ISDC-2026!

https://t.co/wP0DCRysqo

@SETIInstitute

[Astronauts For America @Astros4America]

John Glenn's legacy reaches beyond space. As a senator, he built a reputation for integrity, pragmatism, and bipartisanship. He worked across party lines to advance science, accountability, and public trust in our government. We've gotta get back to that.

[Dale Andersen @daleandersen]

My Friend Flicka - Spring is settling into the Adirondacks, one flicker at a time. Northern Flicker (Yellow-shafted), Colaptes auratus

[NASA Watch @NASAWatch]

Worried About U.S. Democracy, Astronauts Are Launching a Political Nonprofit

https://t.co/SKhXMYStnz @NASA #NASA

[Dale Andersen @daleandersen]

Well Done, NASA!

[U.S. Navy @USNavy]

🚨📰 #USNAVY UPDATE: USS John P. Murtha to support NASA's Artemis II mission

SAN DIEGO – Amphibious transport dock ship USS John P. Murtha (LPD 26) is slated to serve as the recovery ship for the Orion spacecraft and its crew upon their return from the historic Artemis II mission.

The Artemis II mission is the first crewed flight of NASA's Space Launch System (SLS) rocket and Orion spacecraft, sending four astronauts on an approximately 10-day journey that will take them beyond the Moon. This mission will mark humanity's first crewed voyage to the vicinity of the Moon in over 50 years.

Upon completion of their mission, the Orion capsule will splash down in the Pacific Ocean, where John P. Murtha and its crew will be prepared to recover the astronauts and the spacecraft.

[Dale Andersen @daleandersen]

@AlanStern @NASAScienceAA @NASA Exactly!

[National Academies @theNASEM]

#Mars is more than a destination — it’s a laboratory for understanding life and planetary evolution.

Our new interactive outlines how human missions can advance top science goals while preparing for sustained exploration.

Learn more: https://t.co/U262E88fMs

[Dale Andersen @daleandersen]

@NASAWatch Hope that is the right universe!

[Dale Andersen @daleandersen]

@NASAWatch There is no dark side in the moon really,
Matter of fact, it's all dark!

[Astrobiology @astrobiology]

Dale Andersen’s Astrobiology Antarctic Status Report 16 March 2026: Spring Field Season Completed; Preparing The Fall Field Season https://t.co/4CA06WyzN0 #Astrobiology #Antarctica @DaleAndersen @SETIInstitute @NASAAdmin @ExplorersClub

[Astrobiology @astrobiology]

Dale Andersen’s Astrobiology Antarctic Status Report: 15 February 2026: Diving Under The Ice At Lake Untersee https://t.co/ZpWuQmUWat #Astrobiology #Antarctica @DaleAndersen FYI @SolarGirl2018 @NASAAdmin @ExplorersClub @SETIInstitute

[Astrobiology @astrobiology]

Dale Andersen’s Astrobiology Antarctic Status Report: 21 January 2026: Lake Untersee Base Camp Weather
https://t.co/u73AAJkGdm #Astrobiology #Antarctica @DaleAndersen @SETIInstitute

[Astrobiology @astrobiology]

Dale Andersen’s Astrobiology Antarctic Status Report: 18 January 2026: Lake Untersee Base Camp Is Operational
https://t.co/oZc0I00JxO #Astrobiology #Antarctica @DaleAndersen @SETIInstitute

[Astrobiology @astrobiology]

Dale Andersen’s Astrobiology Antarctic Status Report: 14 January 2026: Setting Up Base Camp At lake Untersee
https://t.co/Pqf9KAMmCa #Astrobiology #Antarctica @DaleAndersen @SETIInstitute