ILLUSTRATION: NICOLAS SARTER/IPGP InSight and Perseverance have sent back unprecedented data on everything from marsquakes to the Red Planet’s inner layers. WHILE HUMANS HAVE been struggling to control the Covid-19 pandemic, baking in record heat, and trying to figure out how not to run out of water, our spacecraft on Mars have been enjoying a […]

The experimental setup and test site at Store Glacier, Greenland. Researchers conceptualized a battery-powered receiver with an antenna placed on the ice that can measure ice thickness using the sun’s radio waves. Credit: Sean Peters A new method for seeing through ice sheets using radio signals from the sun could […]

An electromagnetic sensor on its way to the ocean floor off New Zealand to collect data. Credit: Samer Naif / Lamont-Doherty Electromagnetic Geophysics Lab Seamounts offer clue to solving a tectonic puzzle. The Hikurangi Margin, located off the east coast of the North Island of New Zealand, is where the […]

New research shows the sun’s magnetic field drew iron toward the center of our solar system as the planets formed. That explains why Mercury, which is closest to the sun has a bigger, denser, iron core relative to its outer layers than the other rocky planets like Earth and Mars. […]

ANIMATION First global assessment of the extent of snow and ice cover on Earth’s surface—a critical factor cooling the planet through reflected sunlight—and its response to warming temperatures. The global cryosphere—all of the areas with frozen water on Earth—shrank by about 87,000 square kilometers (about 33,000 square miles), a area […]

The bright white region of this image shows the icy cap that covers Mars’ south pole, composed of frozen water and frozen carbon dioxide. ESA’s Mars Express imaged this area of Mars on December 17, 2012, in infrared, green, and blue light, using its High Resolution Stereo Camera. Credit: ESA/DLR/FU […]

MIT scientists have cooled a 10-kilogram object to a near standstill, using LIGO’s precise measurements of its 40-kilogram mirrors. Shown here are LIGO optics technicians examining one of LIGO’s mirrors. Credit: Caltech/MIT/LIGO Lab The results open possibilities for studying gravity’s effects on relatively large objects in quantum states. To the […]

ANIMATION Analysis of 260 million years of major geological events finds recurring clusters 27.5 million years apart. Geologic activity on Earth appears to follow a 27.5-million-year cycle, giving the planet a “pulse,” according to a new study published in the journal Geoscience Frontiers. “Many geologists believe that geological events are random over […]

CLICK HERE TO ANIMATE: Comparison of overlapping one-year estimates at 6-month intervals of net top-of-the-atmosphere annual energy flux from CERES (solid orange line) and an in situ observational estimate of uptake of energy by Earth climate system (solid turquoise line). Credit: NASA/Tim Marvel Researchers have found that Earth’s energy imbalance […]