Mars does not have Earth’s kind of magnetic shield, so it has often been treated as the solar system’s more exposed world. It is a planet left to take the sun’s blows with far less protection. But ...

Venus is often referred to as Earth’s “sister planet” due to its comparable size ...

There will be plenty of celestial events this June, from planetary conjunctions and the summer solstice to a micro full ...

Summer arrives this month and with it come long, sweltering days along with all-too-brief nights. But if you can dodge the fireflies and stock up on mosquito repellent, there’s still stargazing to be ...

"I think these are not far-out type of ideas; they are not really futuristic ideas that we are talking about." ...

Models suggest that impact-ejected material from Earth could reach Venus’ clouds and potentially survive there briefly.

NASA’s MAVEN spacecraft data reveals the first evidence that the Zwan-Wolf effect—thought to require a strong magnetic field—can occur in Mars’ atmosphere during a major 2023 solar storm.

Despite being the closest planet to the Sun, Mercury hosts water ice at its poles. Now scientists may know how it got there.

For many astronomers and astrophysicists there are two distinct, important periods: before the James Webb Space Telescope – and after. It has powered many scientific discoveries since it came online, ...

Venus conjunction over Washington, D.C. to a meteor streaking through Earth’s atmosphere as seen from the International Space ...

"Hearst Magazines and AOL may earn commission or revenue on some items through these links." NASA may have downgraded Pluto ...

Is Mars the end of the line or is it a steppingstone to somewhere else? If we “moon-to-Mars,” do we then “Mars-to-somewhere else?” These are curious questions that have received very little attention ...