Late summer 2021 fires, California, seen from space

NASA's Terra satellite caught images of streamers of smoke from late summer 2021 fires in California during its 115,254th orbit of Earth.

Rare lunar halo – an odd-radius halo – over India

A common halo around the sun or moon has a radius of 22 degrees. It's called a 22-degree halo. But here's a rare lunar halo: an odd-radius halo.

Predicting solar storms to protect Earth

Predicting solar storms isn't easy. We're still a long way from forecasting space weather events days in advance. But we're getting closer.

Iridescent clouds have rainbow colors

Clouds with rainbow colors are called iridescent clouds. The names comes from Iris, the Greek personification of the rainbow. Photos here.

July 2021 Earth’s hottest month on record

July 2021 was the hottest month ever recorded, according to new global data released on August 13 by NOAA’s National Centers for Environmental Information.

The 2021 IPCC report: What you need to know

The 2021 IPCC report released August 9, 2021, lays out the stark reality of climate change. Learn where we are headed and what we can do to prepare.

The Mediterranean heatwave goes on

The Mediterranean heatwave is featuring land surface temperatures of over 50 C (122 F) and air temperatures in triple digits as well.

Major 8.2-magnitude earthquake rocks Alaska

Sirens sounded across Alaska's Kodiak island last night, after an 8.2-magnitude earthquake prompted tsunami warmings.

Why wildfires create red suns and moons

Red suns and moons have been seen all over North America in July 2021. The reason is drifting wildfire smoke. Here's why it happens.

Future sea level rise: When, where, how much?

Scientists have grown more confident about sea level rise projections for the next few decades, but competing factors make it hard to see far into the future.