Expert Voices

People have long claimed they can hear the northern lights, saying the sounds include eerie whizzing, crackling and buzzing. Is it just an auditory illusion?

The BepiColombo spacecraft – a joint project by the European and Japanese space agencies – swung by its destination planet Mercury in the early hours of Oct. 2.

In the short time since NASA's Perseverance rover landed in Mars' Jezero Crater on Feb. 18, 2021, it's already made history.

If scientists want astronomy to thrive throughout the 21st century, we need a new approach: to view new observatories through a lens of public benefit.

Global satellite-based high-speed internet access will come at a cost, polluting the skies and contaminating astronomical observations.

The color of 2022 will be "bright skies," according to paint manufacturer Dulux.

This is an exciting — if controversial — development for the station, which orbits around 250 miles (400 kilometers) above Earth.

James Clerk Maxwell is the scientist responsible for explaining the forces behind the radio in your car, the magnets on your fridge, the heat of a warm summer day and the charge on a battery.

September marks the end of the summer sea ice melt season and the Arctic sea ice minimum, when sea ice over the Northern Hemisphere ocean reaches its lowest extent of the year.

The universe is pretty good at smashing things together. And when neutron stars do it, the collisions release a flood of elements necessary for life.

Love and sex need to happen in space if we hope to travel long distances and become an interplanetary species, but space organizations are not ready.

Flashing through the atmosphere, the rock exploded in a massive fireball about 2.5 miles (4 kilometers) above the ground.

The Inspiration4 mission will launch an all-civilian crew of culturally and socially blended people on a mission funded by a billionaire. None of them will be tourists.

Organized and funded by entrepreneur Jared Isaacman, the Inspiration4 mission touts itself as "the first all-civilian mission to orbit" and represents a new type of space tourism.

The truth of the matter is — we don't know!

For centuries, sailors have been reporting strange encounters like this one.

A new theory suggests dark matter may have come from quantum bags that got squished together in the early universe.

How rare is our solar system? In the 30 years or so since planets were first discovered orbiting stars other than our sun, we have found that planetary systems are common in the galaxy.

What are the chances that a primordial black hole forged in the earliest moments of the universe will come wandering toward Earth?