1) In most of the world, water hyacinth (Eichhonria crassipes) — a fast-growing, aquatic plant — is loathed for its ability to reproduce so quickly that it can blanket large portions of lakes and ...

Update on May 27, 2025: This springtime Landsat image shows snow-covered tundra streaked with wind-blown sediment near Utqiaġvik, Alaska, the northernmost city in the United States. Congratulations to ...

Update on May 27, 2025: This springtime Landsat image shows snow-covered tundra streaked with wind-blown sediment near Utqiaġvik, Alaska, the northernmost city in the United States. Congratulations to ...

One of the more distinctive things about Earth among the planets is that we have plate tectonics. In other words, the hard, outer shell of the planet (called the lithosphere) is divided into several ...

In response to Map of the Ancient Mississippi a few of you left comments to the effect of “no one should live in floodplains.” It’s an appealing notion, but I think it’s unrealistic. Anne Jefferson of ...

Based on email and social media comments we receive, climate models are one of the least understood and most maligned tools used by Earth scientists. One of the first general circulation models was ...

Sticking to the flood theme, here’s a recent map from the U.S. Army Corps of Engineers showing the predicted travel time for water in the Morganza Floodway. It’s a reasonably good map, with one big ...

Researcher Amy McNally spent two weeks in Yanco, Australia to participate in the three week Soil Moisture Active Passive Experiment-4 (SMAPEx-4) field campaign in May. The field campaign measures soil ...

We are now well on our way back home again, with our GPS stations dutifully recording ice motion in our absence. Several of the stations will be visited again this summer, and all will have a visit ...

When working out on the ice sheet, it is useful to have a base of operations, so as to not have to move your whole camp every day you want to go to a new place. For our project, Swiss Camp served as ...

In 1967 Hansen went to work for NASA’s Goddard Institute for Space Studies, in New York City, where he continued his research on planetary problems. Around 1970, some scientists suspected Earth was ...

Japan’s MTSAT-2 (also known as Himawari-7) collected these images of today’s annular solar eclipse from geostationary orbit. The satellite (similar to the United State’s GOES satellites), observed the ...