Posts by 

EarthSky Voices

The universe is expanding faster than theory predicts

The universe is expanding faster than theory predicts. Scientists are trying to come up with new models to explain what the standard model of cosmology can't.

1st science images from Euclid! Dr. Becky explains why we love them

See the first images from Euclid, a dazzling assortment of galaxies, clusters and nebulae that will help us understand dark matter and dark energy.

Record-breaking black hole found in the early universe

NASA has discovered a supermassive black hole that is at an early stage of growth in the early universe. Its mass is about the same as its host galaxy's.

Space vehicle reentries shed exotic metal particles to Earth’s atmosphere

NOAA studies made of Earth's stratosphere suggest that space vehicle reentries shed exotic metal particles in Earth's atmosphere.

Webb sees new feature in Jupiter’s atmosphere: a jet stream

The Webb space telescope revealed a jet stream in Jupiter's atmosphere above its equatorial region. The jet stream travels at about 320 mph (515 kph).

International Observe the Moon Night October 21

International Observe the Moon Night is October 21, 2023. It's a global event for celebrating the moon. Here's how you can participate online or in person.

Olbers’ paradox asks ‘Why is the night sky dark?’

Olbers' paradox asks why is space dark if the universe is filled with stars. The answer has to do with traveling light and red-shifting colors.

2023’s ozone hole is one of the biggest on record. Why?

Satellite images show 2023's ozone hole over Antarctica is one of the biggest on record. The reason could be the eruption of the Tongo volcano in January 2022.

Younger trees excel at capturing – and storing – carbon

New research indicates younger trees are better able to absorb and store carbon from the atmosphere. Read more why this might help fight climate change.

Do solar eclipses affect Earth’s atmosphere?

Hear from a ham radio operator about how solar eclipses temporarily affect Earth's upper atmosphere, or ionosphere. Eclipses can disrupt radio signals and GPS in the region where the eclipse is passing.