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A new study from MIT suggests that existing laser technology could be used to signal alien astronomers on a distant world. But should it be used?
If an extraterrestrial civilization had a language, would it have common features with Earth languages? Linguists explain why they think it's possible.
As the list of known planets beyond our solar system grows, the search for their moons is intensifying. Why exomoons might be key to E.T. life.
Odds are there’s intelligent life out there somewhere among the stars. Why haven’t we heard from an alien civilization? One viewpoint, in this article. What do YOU think?
Researchers suggest the bright lights of cities, which are visible on a planet even from space, might reveal the existence of alien life on other planets.
Polaris Dawn has faced numerous delays. The Federal Aviation Administration has currently given it a launch window on September 10. Watch here!
Scientists in China, studying samples brought back by the Chang’e-5 mission, say that the moon's volcanoes were active as recently as 120 million years ago.
Don't miss Saturn at opposition on and around the night of September 8, 2024. That's when our planet Earth passes between the sun and Saturn.
Boeing's Starliner capsule landed safely - without its crew - on Friday night. The 2 astronauts are still stuck aboard the ISS, slated to return in February.
Phaethon is a weird asteroid that behaves like a comet. It's also responsible for the Geminid meteor shower. Find out how it does so, here.
A small asteroid harmlessly hit Earth's atmosphere above the northern Philippines around 16:39 UTC on September 5, 2024. Watch the videos of the event here!
The fossil remains of a sea cow from the Miocene Period reveal bite marks that suggest it was attacked by a crocodile and subsequently scavenged by sharks.
Sapphire, the September birthstone, is typically blue, the color caused by small amounts of titanium and iron in the crystal structure.
A new Mars image showcases the moon Phobos, the largest volcano in the solar system, Olympus Mons, and the red planet's thin atmosphere.
Pioneer 11 was the 1st spacecraft to encounter Saturn. A true pioneer, it paved the way for the 2 Voyagers in 1980 and 1981 plus Cassini from 2004 to 2017.
A new study shows there is likely much more water on exoplanets than previously thought. Most of it would be hidden in a planet's interior.
Mercury reaches its greatest elongation - greatest distance from the sunrise - on September 5, 2024. Look east at dawn. It'll brighten for the next few weeks.
Get a list of the SpaceX Starlink launches for September 2024 from both the West and East Coasts. Find out how to watch the livestream, and get updates, too.
The Draconids will be best before dawn around the nights of October 7-8. Your 2024 meteor shower guide here. Under dark skies you might catch about 10 per hour.
Venus after sunset will next reach greatest elongation on January 9-10, 2025. Look for a blazingly bright object in the sunset direction in evening twilight.