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.”
A new study by MIT researchers suggests that “Mars’ missing atmosphere may be locked up in the planet’s clay-rich surface,” reports Tom Howarth for Newsweek. “According to the researchers, ancient water trickling through Mars' rocks could have triggered a series of chemical reactions, converting CO2 into methane and trapping the carbon in clay minerals for billions of years,” explains Howarth.
Applying models that simulate erosion on Earth to Saturn’s largest moon, MIT scientists have determined that waves of methane and ethane on Titan likely shaped the moon’s coastlines, writes Elisha Sauers for Mashable. “If Titan's oceans exhibit waves, that could give scientists insight into the moon's climate,” Sauers writes. “They could then begin predicting the strength of wind on this world and infer what direction it's often blowing — factors that might be necessary to power such waves.”
MIT scientists have found that lakes and seas made of methane may have shaped Titan’s shores, writes Jess Thomson for Newsweek. “This discovery could allow astronomers to learn even more about the conditions on Titan,” writes Thomson. “Knowing that waves carved out the coast enables them to predict how fast and strong the winds on the moon are and from which direction they blow.”
Gizmodo reporter Passant Rabie spotlights new research by MIT geologists that finds waves of methane on Titan likely eroded and shaped the moon’s coastlines. “If we could stand at the edge of one of Titan’s seas, we might see waves of liquid methane and ethane lapping on the shore and crashing on the coasts during storms,” explains Prof. Taylor Perron. “And they would be capable of eroding the material that the coast is made of.”
BBC Science Focus reporter Alex Hughes spotlights a new study by MIT scientists that suggests more heavy snowfall and rain linked to climate change could increasingly contribute to earthquakes worldwide. “The researchers made these conclusions based on how weather patterns in northern Japan have seemingly contributed to a new 'swarm' of earthquakes,” writes Hughes, “a pattern of multiple, ongoing quakes – that is thought to have begun in 2020.”
A new study conducted by MIT researchers suggests “heavy snowfall could be a factor in triggering swarms of earthquakes,” reports Evan Bush for NBC News. "Those big snowfall events seem to correlate well with the start of these big earthquake swarms," says Prof. William Frank. "We shouldn’t forget the climate itself can also play a role in changing the stress state at depth where earthquakes are happening."
Scientists from MIT and the University of Oxford have discovered that an ancient sequence of rocks found in Isua, Greenland have “a magnetic field strength of at least 15 microteslas or higher compared to the modern magnetic field of 30 microteslas,” reports David Bressan for Forbes. “These results provide the oldest estimate of the strength of Earth’s magnetic field derived from whole rock samples,” writes Bressan.
Researchers from MIT and elsewhere have found that a sequence of rocks from the Isua Supracrustal Belt in Greenland contain “an ironclad record of the early Earth’s magnetic field,” reports Keith Cooper for Space.com. “The new results from the Greenland rocks are considered more reliable because, for the first time, they are based on entire iron-bearing rocks (rather than individual mineral crystals) to derive the primordial field strength,” explains Cooper. “Therefore, the sample offers the first solid measure of not only the strength of Earth's ancient magnetic field, but also of the timing of when the magnetic field originally appeared.”
MIT researchers have developed a new satellite observation technique that can gauge how fast rivers flowed on Mars billions of years ago and how fast they currently flow on Titan, Saturn’s largest moon, reports Talia Lissauer for The Boston Globe. “We can use these other worlds to help us understand what keeps planetary climate stable, or in some cases, what allows planetary climate to change really drastically over time like on Mars,” says Prof. Taylor Perron.
Researchers from MIT have developed a new satellite observation technique that can help gauge the strength of ancient rivers on Mars and active liquid methane rivers on Titan, Saturn’s largest moon, reports Jamie Carter for Forbes. “What’s exciting about Titan is that it’s active, and on Mars, it gives us a time machine, to take the rivers that are dead now and get a sense of what they were like when they were actively flowing,” says Prof. Taylor Perron. “With this technique, we have a method to make real predictions for a place where we won’t get more data for a long time.”
Using a new satellite observation technique, researchers from MIT and elsewhere have determined the flow of dried-up rivers on Mars and currently active liquid methane rivers on Titan, Saturn’s largest moon. “Both kinds are of scientific interest because they could reveal the role rivers play in shaping the worlds’ environments,” reports Isaac Schultz for Gizmodo.
Prof. Tanja Bosak speaks with Science reporter Eric Hand about how scientists plan to study rock samples from Mars for clues as to whether the planet once had a magnetic field and for signs of ancient life, such as the tough lipid molecules that can form cell walls. “You hope for an outline of a cell,” she says. “You will never find peptides and proteins, but lipids can persist.”
Forbes contributor David Bressan writes that a new study by MIT researchers proposes that oxygen began accumulating in early Earth’s atmosphere due to interactions between marine microbes and minerals in ocean sediments. The researchers hypothesize that “these interactions helped prevent oxygen from being consumed, setting off a self-amplifying process where more and more oxygen was made available to accumulate in the atmosphere,” writes Bressan.