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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.
May 18, 2021
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.
April 29, 2021
First aerial color image of Mars
Color image of the Martian surface, captured by the Ingenuity Mars helicopter.
April 29, 2021
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.
April 28, 2021
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?
April 24, 2021
Saving a humpback whale
Take 3 minutes to watch a feel-good video of a team of responders saving a humpback whale in distress.
April 22, 2021
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.
April 20, 2021
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.
April 18, 2021
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.
April 14, 2021
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.
April 7, 2021
