Exoplanets have captured the imagination of the public and scientists alike and as the search continues for more, researchers have turned their attention to the evolution of metallicity in the Milky Way. With this answer ...
At the 2025 Meeting of the American Astronomical Society, two teams of astronomers—centered at Penn State and MIT—independently announced new discoveries about an extreme form of planetary destruction: apparently rocky planets ...
Mars has northern and southern hemispheres like Earth, but their defining characteristics are markedly different, a phenomenon known as Martian dichotomy. The Southern Highlands are older, higher in elevation and more cratered ...
In a recently published paper, NASA scientists use nearly 20 years of observations to show that the global water cycle is shifting in unprecedented ways. The majority of those shifts are driven by activities such as agriculture ...
Geologically, Mars is very reminiscent of the moon. But it also looks a lot like the Earth. It all depends on who you ask.
It has been thought that plate tectonics were a significant factor in the shaping of our planet and the evolution of life. Mars and Venus don't experience such movements of crustal plates, but then the differences between ...
For now, the future of life on Earth is in human hands. But after the anthropocentric era, the situation starts to get dicey. The sun's luminosity is increasing over time, about 1% every 110 million years, so the Earth's ...
New research suggests that our best hopes for finding existing life on Mars isn't on the surface, but buried deep within the crust.
Which microbes thrive below us in darkness—in gold mines, in aquifers, in deep boreholes in the seafloor—and how do they compare to the microbiomes that envelop the Earth's surfaces, on land and sea?
New research has revealed less than a quarter of the remaining tropical rainforests around the globe can safeguard thousands of threatened species from extinction.
