EAPS

Reuters reporter Andrea Januta writes that using computer models Prof. Kerry Emanuel has found that hurricanes in the North Atlantic have been growing in intensity and frequency as global temperatures have increasing. Emanuel “turned to computer simulations to recreate climate conditions for the last 150 years. Using three different climate models, he then scattered hurricane “seeds,” or conditions that could produce a storm, throughout the models to see how many seeds developed into storms,” writes Januta.

CNN reporter Ashley Strickland writes that NASA’s Transiting Exoplanet Survey Satellite (TESS), an MIT-led mission, has discovered an exoplanet approximately the size of Mars where a year lasts for about eight hours. “Astronomers are eager to learn more about these small planets that quickly spin around their stars in less than 24 hours because they are not sure how they form and end up in such an extreme orbit,” writes Strickland.

A new study by Prof. Kerry Emanuel examining the history of hurricanes finds that North Atlantic hurricanes are increasing in frequency and intensity, write Matthew Cappucci and Jason Samenow for The Washington Post. Emanuel “employed a novel approach to evaluate past storm activity,” they write. “Rather than relying on historical observations, which may have gaps, he performed climate modeling to reconstruct a continuous record of hurricane activity over the past 150 years from which to gauge trends.”

Andy Rivkin ’91 speaks with Boston Globe reporter Andrew Brinker about his work on NASA’s DART mission, which is aimed at testing whether a rocket could be used to help steer an asteroid away from Earth. “I’ve always been interested in stars and space and planets since I was a kid,” said Rivkin. “At MIT, I was in the earth, atmospheric, and planetary sciences department, and that’s when I started looking at asteroids. And then as a graduate student, I studied asteroids. And then I ended up doing my dissertation on them. It sort of all started [at MIT].”

HuffPost reporter Mary Papenfuss writes that a team of archeologists and scientists, including Research Scientist Jahandar Ramezani, have uncovered evidence of social behaviors in dinosaurs. “The bones were segregated by age, with eggs in a common nesting ground,” writes Papenfuss. “Juveniles likely were left in ‘schools’ while adults foraged.”

Research scientist Jahandar Ramezani speaks with Scientific American reporter Christopher Intagliata about his new study that provides evidence early dinosaurs exhibited herding behavior. “This is a critical time in the evolution of dinosaurs. This is pretty early on,” says Ramezani. “So the idea is: this type of behavior, this social behavior, may have actually contributed to the evolutionary success of dinosaurs.”

Writing for The Guardian, Prof. Daniel Rothman examines the history of Earth’s mass extinctions and how Earth seems to experience “a cascade of disruptions when stressed beyond a tipping point." Rothman writes that: “If we do not significantly cut back CO2 emissions, then we risk passing the threshold before the end of the present century.” He adds, “let us not contribute to the risk of a sixth extinction. Efforts to limit CO2 emissions now may pay dividends further into the future than we can imagine.”

Prof. Taylor Perron, a recipient of one of this year’s MacArthur fellowships, speaks with Callie Crossley of GBH’s Under the Radar about his work studying the mechanisms that shape landscapes on Earth and other planets. “We try to figure out how we can look at landscapes and read them, and try to figure out what happened in the past and also anticipate what might happen in the future,” says Perron of his work as a geomorphologist.

Newsweek reporter Robert Lea writes that astronomers from MIT and elsewhere have found evidence of a large planetary collision that stripped the atmosphere from a planet. “While astronomers have long believed these kinds of collisions are common throughout the Universe, this is the first time that they have spotted evidence of one that stripped an atmosphere in such a way around a distant star,” writes Lea.

Researchers from MIT and other institutions have uncovered evidence that early dinosaurs may have lived in social herds, reports Kate Baggaley for Popular Science. “People have known for a long time that the more advanced dinosaurs, the ones that lived in the late Jurassic and Cretaceous, especially the large sauropods…moved and lived in herds,” explains research scientist Jahandar Ramezani. “But the question has always been, when did this behavior start?”

A new study co-authored by MIT researchers presents the first evidence that a distant planet had its atmosphere partially blown away by a large impact, reports Charles Choi for Space.com. "I think a really critical implication is that the gas that is released in the aftermath of a giant impact can last for a long time, and it can affect the way the system evolves long-term," explains graduate student and lead author Tajana Schneiderman. 

Forbes contributor David Bressan writes that a new study co-authored by MIT researchers finds that images taken by the Perseverance rover show that Mars’ Jezero crater was once a lake. “The fine-grained clay and carbonate layers deposited in the fossil lake are capped by a diamict, a sedimentary rock consisting of a mix of large and small boulders,” writes Bressan. “Scientists think the boulders were picked up tens of miles upstream and deposited into the former lakebed by episodic flash floods, suggesting a catastrophic climate change in Mars' distant past.”

Prof. Tanja Bosak and Prof. Benjamin Weiss speak with Popular Science reporter Kate Baggaley about how their analysis of images captured by NASA’s Perseverance rover found that the Jezero crater was once a lake and river delta. “The geological history of the Jezero crater could help scientists understand how the Red Planet changed from being wet and possibly habitable into a harsh desert world,” writes Baggaley. “Definitely we hit the jackpot here,” says Weiss, 

Space.com reporter Mike Wall writes that a new study co-authored by MIT scientists finds that the Jezero crater on Mars previously hosted a big lake and river delta. “The newly analyzed photos may provide an intriguing glimpse” into Mars’ transformation to a dry landscape,” writes Wall.

Researchers from MIT and other institutions analyzed images captured by NASA’s Perseverance rover and found that Mars’ Jezero crater was a lake 3.7 billion years ago, reports Ashley Strickland for CNN. “The new information shows the importance of sending rovers to explore the surface of Mars,” writes Strickland. “Previous images captured by orbiters had shown that this outcrop resembled the kind of fan-shaped river deltas we have on Earth. Perseverance's images show definitive proof of the river delta's existence.”