Planetary science and exploration

Prof. Richard Binzel speaks with CNN reporter Ashley Strickland about the trajectory of asteroid 2024 YR4. “YR4 presents a challenge because it is small and headed away. Telescopes on the ground can track it for a few more months. Then we’ll call (the James Webb Space Telescope) into service to track it even further, if needed,” says Binzel. “While certainty for 2024 YR4 missing the Earth is the outcome we expect, it’s not up to us. It’s for nature to decided. In fact, nature already has settled the question. We just don’t know that answer yet. That’s why our tracking efforts continue.”

Prof. Richard Binzel, Prof. Julien de Wit, and Research Scientist Artem Burdanov speak with NBC 10 Boston reporter Matt Fortin about their new asteroid-detecting method that will be used to track the newly discovered asteroid 2024 YR4 and help protect Earth. “By refining and applying their technique, my colleagues [de Wit and Burdanov] have basically turned the JWST into the most capable asteroid-tracking system in history,” explains Binzel.

In an interview with NBC News reporter Kathy Park, Prof. Richard Binzel, Prof. Julien de Wit, and Research Scientist Artem Burdanov provide insight into astronomer's efforts to learn more about asteroid 2024 YR4. “This is an object that merits tracking by astronomers, merits our attention and that’s simply what we are doing,” says Binzel. 

Profs. Richard Binzel, Julien de Wit and Research Scientist Artem Burdanov speak with Boston Globe reporter Sarah Mesdjian about asteroid 2024 YR4 and their work developing a new method to “find and track far-away asteroids that were previously undetectable by using technology they compared to long-exposure images.” Says Binzel: “With improving technology, we are going to be aware of more and more of these objects.” He adds: “It’s a really important learning process what we’re doing right now. So when we find more and more of them, we know how to quickly process them and assess which of them are really worth looking further into.”

Research Scientist Artem Burdanov speaks with Boston.com reporter Molly Farrar about asteroid 2024 YR4. Burdanov and his colleagues recently developed a new detection method that could be used to track potential asteroid impactors and help protect our planet. “We need to observe it more, and then we can make an informed decision,” says Burdanov, “but it’s good that we have telescopes and scientists who can do this type of work and inform the public about the threat.” 

Research Scientist Artem Burdanov speaks with WBZ News Radio reporter Chaiel Schaffel about his team’s work developing a new detection method that could be used to track potential asteroid impactors like 2024 YR4 and help protect our planet. Burdanov and his colleagues used the new method to detect “138 asteroids ranging in size from a bus to the size of Gillette Stadium.” Burdanov explains that he and his colleagues "used a clever technique to find asteroids that are hidden in the noise.” 

Prof. Julien de Wit speaks with National Geographic reporter Robin George Andrews about how special infrared filters on the James Webb Space Telescope (JWST) can be used to find small asteroids and precisely determine their size. “Asteroids get much brighter in the infrared than in the visible as they move away from Earth, and they are thus easier to detect or track with infrared facilities—JWST being the biggest of all,” says de Wit. 

Researchers at MIT and elsewhere have found “the smallest asteroids ever detected within the main belt, which is a field between Mars and Jupiter where millions of asteroids orbit,” reports Sabrina Lam for The Boston Globe. “With new technology, we can find populations of asteroids that were inaccessible previously,” says Prof. Julien De Wit.  “Now we have the capability to be able to study this object further out, predict the orbit with much better accuracy, and decide what to do for potential or possible future impactors.”

Using the James Webb Space Telescope (JWST), MIT astronomers have spotted “small space rocks – including some just dozens of feet in length, the tiniest ever discovered in our solar system’s main asteroid belt between Mars and Jupiter,” reports Robin George Andrews for National Geographic. “This work helps to fill in astronomers’ understanding of the asteroid belt, the wreckage left behind from the inner solar system’s formation—and it’s always nice to spy more of those rocky time capsules for future study,” explains Andrews. 

Graduate student William Parker SM '22 has discovered that two geomagnetic storms have “affected the orbits of thousands of satellites, resulting in an unprecedented mass migration,” reports Passant Rabie for Gizmodo. “Geomagnetic storms are disturbances in Earth’s magnetosphere—a large bubble of magnetic field around our planet—caused by solar wind,” explains Rabie. 

New research by graduate student William Parker SM '22 has found that two geomagnetic storms have led to the mass migrations of thousands of satellites in low Earth orbit, reports Jeff Foust for Space News. “This is a significant impact,” says Parker. “This is critical infrastructure to all of our space operations moving forward, and it will only become more important as time goes on.”

Prof. Benjamin Weiss, director of the MIT Paleomagnetism Lab, speaks with Forbes reporter Bruce Dorminey about the use of paleomagnetism to track the geographic origins of stromatolites. Weiss notes that he and his colleagues published a paper examining the magnetization of stromatolites in the Strelley Pool Chert in Australia’s Pilbara region. The team’s measurements show that these stromatolites formed within 8 degrees latitude of the equator, Weiss explains. 

MIT researchers have analyzed tiny particles from a distant asteroid and found that a weak magnetic field may have helped form the outer planets in our solar system,  reports Sabrina Lam for The Boston Globe. In the future, the researchers hope to use samples from other celestial bodies to identify magnetic fields in our universe. “An exciting thing that’s probably going to happen in the next few decades,” says Prof. Benjamin Weiss, “is that we’re going to start bringing samples back from comets.”

MIT scientists have discovered a complex form of carbon, crucial for life on Earth, outside our solar system for the first time, demonstrating how “the compounds needed for life could come from space,” reports Alex Wilkins for New Scientist. “Now, we’re seeing both ends of this life cycle,” explains Prof. Brett McGuire. He explains that we can see the chemical archaeological record in our solar system in asteroids and on Earth, “and now we’re looking back in time at a place where another solar system will form, and seeing these same molecules there forming. We’re seeing the start of the archaeological record.”

A new study by MIT scientists proposes that researchers should be able to detect near-flying primordial black holes by measuring the orbit of Mars, reports Darren Orf for Popular Mechanics. The researchers found that “if a primordial black hole passed within a few hundred million miles of the Red Planet, then a few years later, the planet’s orbit would have shifted by the small (but technically detectable) distance of about a meter,” Orf explains.