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March 15, 2025
Greetings! Here’s a roundup of the latest from the MIT community.
 
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Satellite Safety
Long exposure of Earth’s city lights, stars, and satellites in low orbit
      
Climate change is reducing the atmosphere’s ability to burn up old space junk, decreasing the number of satellites that can safely orbit in space, engineers report. “If the atmosphere is changing, then the debris environment will change too,” says graduate student William Parker.
Top Headlines
This startup just hit a big milestone for green steel production
MIT spinout Boston Metal completed its first run of an industrial reactor that uses electricity to make steel.
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QS World University Rankings rates MIT No. 1 in 11 subjects for 2025
The Institute also ranks second in seven subject areas.
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The man who reinvented the hammer
If your arm doesn’t hurt after pounding nails, thank Kurt Schroder ’90, whose design — just one of his many groundbreaking inventions — improved the majority of hammers sold in the U.S.
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3 Questions: Visualizing research in the age of AI
Felice Frankel discusses the implications of generative AI when communicating science visually.
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Making solar projects cheaper and faster with portable factories
Charge Robotics, founded by MIT alumni, has created a system that automatically assembles and installs completed sections of large solar farms.
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Building trust in science through conversation and empathy
A conference at MIT brought together scientific experts and communicators to discuss the path toward a more informed, science-supportive public.
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#ThisisMIT
Riddhi Bhagwat speaks in front of a whiteboard. Text via @‌mit-energy-initiative: The energy of the future: Meet Riddhi Bhagwat '27. Riddhi used a machine learning model to monitor and predict how solids and fluids flow underground, as part of the MITEI energy undergraduate research opportunities program. This work can aid development in geothermal energy as well as underground resource management such as carbon dioxide storage and nuclear waste repositories. Here, Riddhi, a computer science and engineering major at MIT, shares how her work is helping to bridge the energy transition gap.
In the Media
When student-athletes are also engineers // American Society of Mechanical Engineers
Ashley Lederman, a senior student studying mechanical engineering who also plays midfield and defense for the MIT field hockey team, relates how being an athlete has helped her learn to manage her time.
MIT’s itty-bitty moon robot has something to prove // The Boston Globe
MIT researchers developed a thumb-sized rover, dubbed the AstroAnt, and a depth-mapping camera, technologies that could one day be used to “patrol the exteriors of lunar probes, satellites, or space stations.”
Engineering athletes redefine routine // Mechanical Engineers Magazine 
After suffering a concussion in her sophomore year, senior Emiko Pope, a mechanical engineering major and midfielder on the MIT women’s soccer team, was inspired to study the effectiveness of concussion headbands.
Changemakers: Diane Hoskins // CNBC
Diane Hoskins ’79, a member of the MIT Corporation, has been named a CNBC Changemaker for her indelible impact on the business world.
All About π (and Pie!)
A mixed row of 13 pies of pastry and mathematical illustrations, with one pie showing pi symbol left of center.
The Knight Science Journalism Program at MIT boasts over 400 alumni. To celebrate Pi Day, these science communicators were asked to share their essential knowledge and stories about pi, pie, and everything in between — from books and articles to podcasts and Netflix documentaries, as well as snapshots of delectable bakes from the KSJ community. 🥧
Moon Pi
This year, Pi Day coincided with a blood moon lunar eclipse, which took place yesterday morning. The equatorial radius of the moon is about 1,738 km. Can you use the radius to find the moon’s circumference? Find the answer below.
MIT on ... Covid-19
Illustration of a SARS-Cov-2 virus particle with antibodies surrounding it
This past week marked five years since the World Health Organization declared Covid-19 a pandemic. What have MIT-affiliated scientists and engineers discovered and invented to address the disease? Browse the MIT News archives to learn more.
This edition of the MIT Weekly was brought to you by what people at MIT are doing for (Blood Moon) Pi Day. 🔴

Moon Pi answer: You can use the formula circumference = pi x diameter. We know the diameter is double the radius, so to find the circumference we say: (1,738 x 2) x pi = ~10,920 km. So, the moon’s circumference is about 10,920 km!

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