Wildfire smoke lofted miles high could have an unexpected effect on Earth’s climate
New measurements demonstrate that smoke particles in the upper atmosphere are twice the size of lower-altitude ones.
NASA’s Parker Solar Probe captures solar wind doing a ‘U-turn’
NASA's Parker Solar Probe captured solar material looping back to the sun, revealing how it recycles magnetic energy and shapes future solar storms.
Could the Star of Bethlehem have actually been a comet?
The direction, distance and motion of the comet through the sky during its closest approach could have made it seem like it was hovering over Bethlehem when Jesus was said to have been born.
Interstellar comet 3I/ATLAS makes its closest approach to Earth tonight: Here’s what you need to know
The interstellar comet will pass safely by Earth, giving astronomers their best chance to study it up close.
Finding the point of no return: Sun’s shifting, spiky atmospheric boundary mapped in detail for 1st time
Scientists have created the first detailed maps of the sun's atmospheric boundary, where solar material breaks free and streams into space.
Good news for lunar bases? Earth’s atmosphere leaks all the way out to the moon
Anomalous amounts of volatile elements found in the Apollo samples brought back from the moon have been traced back to our own planet's leaky atmosphere.
Why interstellar comet 3I/ATLAS’ close Earth approach is an early Christmas gift for astronomers
When 3I/ATLAS is closest to the Earth on Dec. 19, all the features that we are looking for will be easier to detect with our telescopes.
A spider-like scar haunts Jupiter’s moon Europa — and scientists think they know why
A strange, spider-like scar on Jupiter's icy moon Europa may mark where salty water once surged up through its fractured crust.
Scientists map of old Mars river basins for the 1st time. These could be great places to search for ancient life
"We did the simplest thing that could be done — we just mapped them and pieced them together."
Interstellar comet 3I/ATLAS caught on camera in new images from Hubble Space Telescope and JUICE Jupiter probe
JUICE and the Hubble Space Telescope turned their gazes towards the interstellar visitor in November.