Maria Alejandra Sierra

What happens to the human body when traveling to space? Check out the latest portfolio of Space Omics and Medical Atlas publications by @mason_lab @inspiration4x and many others!

@Astro_Cady @NASA @Astro_Ellen @NASA_Johnson Happy Birthday @Astro_Ellen !

🎂Please join me in extending warm birthday wishes to former @NASA #astronaut @Astro_Ellen - who flew to 🚀#space 4 times, former Director @NASA_Johnson, FIRST person to 🎶play the #flute off-planet & Presidential Medal of Freedom recipient!! Here's to many more amazing orbits!💫

@NASA @Chasten Lol. I thought the same!

@Chasten Yes — the recovery teams monitor the area so the only thing greeting the crew is the welcome party.

Watching the Artemis splashdown and just out of curiosity is it anyone’s job to make sure there are no sharks?

@Drunken_Forest Existen stickers que se ponen en los vidrios y pueden ayudar a las aves a prevenir collisiones.

Los muros de vidrio transparente deberían estar prohibidos en todo el mundo, es una de las formas mas efectivas de convertir una estructura en una máquina de matar aves.

@andreanimalidad @PoliciaColombia @CarabinerosCol @FiscaliaCol 👏🏻

#LeyAngel 🚨‼️Golpe histórico a red criminal que organizaba peleas de perros clandestinas, gracias la información anónima que recibimos y a la acción eficaz de las autoridades🚨‼️ @PoliciaColombia @CarabinerosCol @FiscaliaCol

@Orientese_co @mmarinilla @PoliciaColombia @WRadioColombia

#DenunciaCiudadana - Abandonaron este perrito y se fueron como si nada en @mmarinilla orientese.co/denunciaciudad…

@ValerieBlock @BirdCentralPark I saw them yesterday around Harlem!

Trading places: A pair of kestrels perched on the Madison Square Park flagpole one morning this week. One flew off, landing across the street. Later that same day a RTH claimed the spot! It went on to catch and consume a starling #birdcpp #BirdsSeenIn2026 #canonR7

@CitiBikeNYC Still down in the UES

⚠️System Alert: The system is currently experiencing a temporary disruption and you may be unable to unlock a bike. We are working to get the issue resolved as soon as possible.

In honor of #JaneGoodall, I'm reposting this video taken on her 90th birthday and her message about our duty as scientists and citizens of the world: "Keep telling stories"

Check out our database at themicrobedirectory.com Thanks to @mason_lab @krista_ryon @chandrimatweets @dcdanko @mezambra and many others!! 🦠

"The Microbe Directory: a centralized database for biological interpretation of microbiome data" academic.oup.com/database/artic… bravo! @asierra93 and lab team!

@AsociacionMi Enviado ❤️

Rescatamos este perrito abandonado en un costal en una vereda de Chiquinquirá 🥺😔 positivo a parvovirosis, otra vez estamos llenos de casos que aún no hemos publicado, por favor buscamos 50 corazones que nos ayuden con 10 mil pesos para poder pagar sus días de hospitalización y exámenes mil gracias 🥺💙🙏🏻 Bancolombia Ahorros 35270197653 NIT 901039372 Nequi 3118009018 DaviPlata 3118239988 Paypal vivianieto@yahoo.es

Bernardo sigue buscando hogar 🥺🙏🏻 lo hemos publicado muchísimo y después de 1 año aún no encuentra el amor de su vida 😔 si deseas darle una familia por favor escríbenos al WhatsApp 📲 3118009018 esterilizado y vacunado, amoroso y súper divino. 💙💙💙

@AstroPeggy Welcome home!

It feels good to be home again.

@AstroPeggy Greetings from Earth! ❤️

I've missed this view! #Ax4

@AstroPeggy Good luck!

I never thought I would go back to space so soon after retiring from NASA (or if I would ever go again!), but much to my delight, 2 years ago I was preparing to command Ax-2.  And now I find myself getting ready to go back to space with the crew of Ax-4. We have completed our training and begun the final launch preparations. We are ready to go!

@BirdCentralPark dead Robin spotted on the South end of Great Hill, today with no external injuries

The newly released #StateOfTheBirds report for the U.S. reveals continued declines in North American bird populations. “#BirdsTellUs that we have a full-on emergency across all habitats,” says Audubon’s Chief Conservation Officer Marshall Johnson. Read on: bit.ly/3R8z5Sw

@StoryfulNews Yes. Sure.

@asierra93 Hi Maria, I hope you're well. I'm a journalist with the news agency Storyful. Did you take this footage? May we use your video with credit to you as per our terms storyful.com/clearance? Thank you

The FDNY is currently operating at a 3-alarm fire at 108 W 139 Street in Manhattan.

Our new paper led by @mezambra @asierra93 is out! "Distinct bacteria display genus and species-specific associations with mycobionts in paramo lichens in Colombia" academic.oup.com/femsec/advance…