Posts by 

Eleanor Imster

Earliest evidence of humans changing their world with fire

Stone Age artifacts excavated near the shores of Lake Malawi in eastern Africa, combined with evidence drawn from the lakebed itself, provides the earliest evidence of ancient humans using fire to enhance their world.

Warmer ocean temperatures may decrease Saharan dust crossing the Atlantic

Every year millions of tons of dust from the Sahara Desert are swirled up into the atmosphere and carried across the Atlantic. Research suggests that, as the climate changes, Saharan dust transport will decrease.

First aerial color image of Mars

Color image of the Martian surface, captured by the Ingenuity Mars helicopter.

Climate has shifted axis of Earth, says study

New research suggests that loss of water on land through ice melting and human-caused factors is changing the movement of Earth's North and South Poles.

More than 5,000 tons of space dust fall to Earth each year

Dust shed from comets and asteroids constantly rains down on our planet. How much of this extraterrestrial material lands on Earth’s surface?

Saving a humpback whale

Take 3 minutes to watch a feel-good video of a team of responders saving a humpback whale in distress.

Celebrate Earth Day 2021 with NASA

For Earth Day 2021 (April 22), NASA highlights science and technology that is helping us live more sustainably on our home planet and adapt to natural and human-caused changes. Here's how to participate.

Listen to a spiderweb

Spiders are master builders, expertly weaving strands of silk into intricate 3D webs. Now, scientists report they have translated the complex structure of a web into music. Listen here.

Carbon dioxide levels now higher than at any time in past 3.6 million years

Levels of atmospheric carbon dioxide (CO2) and methane continued to rise in 2020, said NOAA, despite the economic slowdown caused by the coronavirus pandemic response.

Guatemala’s Pacaya volcano still erupting

The Pacaya volcano in Guatemala is still erupting, spewing rivers of lava and ash clouds. See photos, video, and satellite images.