Very excited to announce that I will be the next chair of the Optical and Infrared Astronomy Division at Center for Astrophysics | Harvard & Smithsonian !

I wanted to share some of my thoughts on today's Supreme Court decision on affirmative action:

Godspeed Euclid

Today I took the Center for Astrophysics undergrad summer students on a tour of the Chandra X-ray Observatory Operations Control Center in Burlington, Mass.

One year ago, NASA released an image from the James Webb Space Telescope that reminded us America can do big things. Today, they’ve done it again.

Happy 20th launch anniversary to NASASpitzer! You can read our Spitzer retrospective here: nature.com/collections/ca…

Looking forward to all the things this groundbreaking observatory will show us. Congratulations to the entire XRISM team!

Looks really useful, looking forward to it

#SPHEREx is a NASA Medium Explorer mission designed to study cosmic inflation, the evolution of galaxies and structures in the universe, and the trail of water ice in the Milky Way’s interstellar medium. Its data will be processed and archived at IR Science Archive.

.ESA's Euclid mission has come to its (fine guidance) senses🥳🤩 The #DarkUniverse detective has found its 'lost' stars as a software patch solves its navigation woes🩹🛰️ Because, how could a mission study the subtle influences of #DarkEnergy and #DarkMatter if the stars look like ...

As strange as it feels to post about something as simple as books in these chaotic and violent times, I truly believe that stories are where we access each other’s humanity in times of darkness—to censor them is to lose more than everything: it’s to lose ourselves, which is to

The official Twitter announcement finally came through! It is a great honour to be recognised in my home country having returned from abroad after so many years. Thank you Institute of Physics.

Welcome to the dazzling edge of darkness!🤩 The first images from #ESAEuclid are here: razor-sharp, wide & looking far into the distant Universe. A trifecta never before achieved. Explore these 5⃣ cosmic portraits that show Euclid's full potential esa.int/Science_Explor… and👇

Happy Carl Sagan Day ❤️ This video footage is from when our co-founder Carl Sagan, unveiled the Pale Blue Dot image at a press conference on the Voyager missions in 1990. We are grateful to have had Carl for a blip of time on this "mote of dust suspended on a sunbeam." ✨

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I'm hiring a postdoctoral fellow! If you'd like to join the vibrant scientific community at the CfA and work on the interstellar medium, star formation, stellar populations, or the structure and dynamics of the Milky Way/nearby galaxies, please apply! jobregister.aas.org/ad/d5b28e93

Capturing the cosmos in a way once thought to be impossible! Roman will survey the same large region of space repeatedly, allowing scientists to watch a cosmic movie that will reveal new astronomical phenomena! Learn more: go.nasa.gov/40CDLEa

The ASTRO 3D Centre of Excellence reached 50% women over a five-year time frame by implementing a suite of evidence-based recruitment and retention initiatives. Kewley et al.: nature.com/articles/s4155… or rdcu.be/drmGa

STScI received 1,931 proposals for #JWST Cycle 3 – a world record – requesting almost 48,800 hours of observing time. Get more proposal submission statistics: bit.ly/47cEvm1

🍂 This Friendsgiving, you’re all invited to our universal table. Here’s what some of our missions are bringing to the potluck. Take in the spread, then tell us what you’ll be putting on your plate!