Earth and Planetary Scientist @WHOI and @NASA. Animal lover. Wannabe astronaut. I do all my own stunts. Human companion of @DreaminDog.
Here and there, usually...
Joined March 2009
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Catherine Colello Walker retweeted
Antarctic ice plays a crucial role in regulating Earth’s climate, global sea levels, ocean circulation, and planetary reflectivity.
Learn more in a new #ScienceReview: scim.ag/42FMQPN
Catherine Colello Walker retweeted
🚀@NASA astronaut @lunarloral brought some real star power to students in #FalmouthMA this week! The former #WHOI engineer shared her journey from working on #innerspace vehicles like #Alvin to achieving her #childhooddream with a recent mission aboard @Space_Station!
Catherine Colello Walker retweeted
The selections for the NASA PSIE (Precursor Science Investigations for Europa) are posted!
Our proposal titled "Chaos Theory: Formation and Evolution of Chaos Terrain, and Prospects for Probing Interior Activity" was selected!
I am so proud of our team lead by @SarahFagents!
Catherine Colello Walker retweeted
Who's excited for Europa Clipper?! (the answer is me; it's me that's excited)
Get up to date with everything you need to know about the mission and the many mysteries of Europa with my new piece for @NatGeo
nationalgeographic.com/scien…
Catherine Colello Walker retweeted
A brilliant week of science, brought to us by @NASA and @esa at the gorgeous waterfront venue of the Harpa Centre here in Reykjavik. We will be bringing you even more highlights from the conference over the next week…
What a venue! What an event!
#Cryo2ice is almost over, but not quite yet.
Time now to summarise this incredible "family reunion" of our milk and cookies, CryoSat and ICESat-2.
We're about to hear from all our chairs, before a wrap up from @tparrine & @Thorsten_Markus
Catherine Colello Walker retweeted
In the land of ice and snow...
...and volcanoes 🌋🌋🌋
#Cryo2ice is here 🛰️🛰️
Get ready for a week of
🧊 ice sheets and ice shelves
🏔️ mountain glaciers
🌊 oceans
❄️ snow and sea ice
🏞️ inland waters
🔮 & a CRISTAL clear future
CryoSat 🤝 ICESat-2
@ESA_EO🤝@NASAEarth
Catherine Colello Walker retweeted
In 1968, during Apollo 8, Bill Anders offered to humanity among the deepest of gifts an astronaut can give. He traveled to the threshold of the Moon and helped all of us see something else: ourselves. He embodied the lessons and the purpose of exploration. We will miss him.
ALT On Dec. 24, 1968, Apollo 8 astronauts Frank Borman, Jim Lovell, and Bill Anders became the first humans to orbit the Moon, and the first to witness the magnificent sight called “Earthrise.” As the spacecraft was in the process of rotating, Anders took this iconic picture showing Earth rising over the Moon’s horizon. In 2018, the International Astronomical Union commemorated the event by naming a 25 mile diameter crater “Anders’ Earthrise.” Image credit: NASA
Catherine Colello Walker retweeted
Want to know all about icebergs? Of course you do. With @CapComCatWalk @ojmarsh @jemmawadham and @NASA_ICE Christopher Shuman.
bbc.co.uk/sounds/play/w3ct5x…
Catherine Colello Walker retweeted
Here's our latest Inquiry, @williamcrawley speaks to expert witnesses @CapComCatWalk from @WHOI, @ojmarsh from @BAS_News, Professor Jemma Wadham from @iC3_COE and Professor Christopher Shuman from @NASAGoddard
The world's biggest iceberg is made up of a trillion tonnes of frozen pure water and is more than twice the size of
Greater London.
It's slowly moving towards the Southern Ocean and having a huge impact on the seas around it
bbc.in/455Y7YY
Catherine Colello Walker retweeted
The world's biggest iceberg is made up of a trillion tonnes of frozen pure water and is more than twice the size of
Greater London.
It's slowly moving towards the Southern Ocean and having a huge impact on the seas around it
bbc.in/455Y7YY
Catherine Colello Walker retweeted
Please tell me we're going to call it the #HalloweenBerg. Using the normal nomenclature (#A83) is so dull. This is the third large berg to come off the Brunt in three years. The decision of @BAS_News to move Halley base in 2016/17 looks ever smarter. bbc.co.uk/news/articles/c033…
Catherine Colello Walker retweeted
It's done. The last great chunk of #MolarBerg (aka D28a), the biggest block of ice to come of the Amery Ice Shelf in 50 years, let go big style this week. Hydrofracturing shattered the remnant berg virtually overnight. 52S; 22W on 16/5/24. #NASA #Worldview
ALT Molar Berg / D28a on 16/5/2024
Catherine Colello Walker retweeted
NASA Planetary Science and Technology through Analog Research (PSTAR) selection emails went out today. This is an incredible program but is very oversubscribed (4% selection rate). For those of you (like me) whose proposals weren't selected this round, don't give up. Keep trying.
Catherine Colello Walker retweeted
With Antarctic sea ice cover again near record lows, researchers are debating whether the ice has seen a permanent "regime shift." This could have alarming consequences for melting on the ice shelves, ecosystems, and the global climate. #Antarctica
newscientist.com/article/242…
Catherine Colello Walker retweeted
Climate graphic of the week: huge ice loss risks Antarctica’s ‘destabilisation’ ft.com/content/deb66512-d866…
#HowMuchHowFast
Catherine Colello Walker retweeted
It's happened. The icy tooth has finally split in two. Molar Berg, aka #Iceberg D28, has calved right down the middle, northwest of South Georgia. @CapComCatWalk @helenafricker @usnatice One chunk is about 500 sq km, the other about 400 sq km. Big beasts in their own right.
Catherine Colello Walker retweeted
🚀 LIFTOFF of the @SpaceX Falcon 9 carrying the Plankton, Aerosol, Cloud, ocean Ecosystem spacecraft! #KeepingPACE
Catherine Colello Walker retweeted
Welcome Somos Flight! 🚀
Diana Trujillo took the shift for the first-time last week as NASA’s 108th Flight Director making the 2022 Flight Director class complete. Her team name “Somos Flight” references a community. Somos, meaning “we are”, represents who we are as people, what we value, what we have gone through to become, and what we can do together.
Congratulations Diana!
ALT Diana Trujillo during her first shift as Flight Director and team name ceremony in Mission Control Houston.
ALT Trujillo in Mission Control Houston taking the shift as NASA's 108th Flight Director.
ALT Trujillo's team name, "Somos Flight", meaning "We Are Flight".
ALT Members of NASA's 2022 Class of Flight Directors pose with Diana Trujillo during her first shift and team naming ceremony in Mission Control Houston.
Catherine Colello Walker retweeted
Another sighting of that massive iceberg #D28 "Molar Berg". There are always some changes visible on every pass - and it looks clear that chunks are falling away (likely related to wave action erosion).
Jan 18, 2024, 11:00 a.m. UTC
Reminder: The iceberg is approximately 35x22 miles in size and is currently the farthest north of all those tracked in the South Atlantic Ocean. It's at the very southern extent of the @Space_Station orbit just a little north of the South Georgia islands
@BBCAmos @icey_mark @BAS_News @sen @usnatice
Catherine Colello Walker retweeted
OMG. It’s Molar Berg seen from the ISS. ♥️♥️♥️ @CapComCatWalk @helenafricker @kevin_eason1
This gigantic iceberg, approximately 35x21 miles in size, was spotted to the Northeast of the South Georgia and South Sandwich Islands in the South Atlantic Ocean
Jan 8, 2024 - 15:48 UTC @Space_Station