Astronomy

For folks in the United States, July evenings mean 4th of July fireworks. While you’re waiting for the show, be sure to watch for the most elusive of the planets as twilight falls, as Mercury shines at its very best for 2025. If you’ve never seen the innermost world before, now is a good time to try. This is because Mercury reaches greatest elongation, or its greatest point from the Sun as seen from our Earthly vantage point later this week.

The U.S. military is suspending its efforts to secure a small Pacific island as the test landing site for a new program using rockets to rapidly deliver cargo anywhere on Earth.

A hydrologist explains why Texas Hill Country is known as Flash Flood Alley and how its geography and geology can lead to heavy downpours and sudden, destructive floods

We've shone a light on the best Amazon Prime Day star projector deals now that the annual Summer sales event has begun and will run until July 11.

The loss of snow cover in temperate forests is set to slow their growth and reduce their ability to remove carbon from the atmosphere, an overlooked consequence of climate change

The loss of snow cover in temperate forests is set to slow their growth and reduce their ability to remove carbon from the atmosphere, an overlooked consequence of climate change

Being conscientious will serve kids in the long run. Here are some tips to help them learn that trait

Brown dwarfs, also known as "failed stars," could be corrupted by dark matter and transformed into "dark dwarfs" powered by the universe's strangest stuff.

While we know of thousands of exoplanets, the science of studying their atmospheres is still in its early days. When astronomers analyze atmospheres, they have to decide which molecules to include in their models, which can bias the results. A new paper proposes that Cassini data on Titan could provide the perfect benchmark, helping to distinguish between different hydrocarbons detected in the atmosphere of an exoplanet.

NASA astronaut and Expedition 73 Flight Engineer Jonny Kim works inside the SpaceX Dragon cargo spacecraft completing cargo operations before it undocked from the International Space Station's Harmony module several hours later.

Some numbers are so unimaginably large that they defy the bounds of modern mathematics, and now mathematicians are closing in on a number that may mark the edge of this bizarre abyss

Some numbers are so unimaginably large that they defy the bounds of modern mathematics, and now mathematicians are closing in on a number that may mark the edge of this bizarre abyss

As James Gunn's Superman (2025) races into cinemas faster than a speeding bullet, we look at the planet that could have hosted his home world and why he might be older than he looks.

A Paramount Plus Premium subscription is now 13 times cheaper directly from Paramount, compared to Amazon, so don't wait around for Prime Day.

Using the ALMA telescope, astronomers have revealed the internal structure of the first galaxies in the universe, hinting at how our cosmos took shape.

How Species' lofty science-fiction ideas were consumed by its monster instincts.

Suddenly feeling old? Evidence now suggests that rather than a long, steady decline, we dramatically age around three specific times in our lives. Might it be possible to stay younger for longer?

Suddenly feeling old? Evidence now suggests that rather than a long, steady decline, we dramatically age around three specific times in our lives. Might it be possible to stay younger for longer?

Flash floods happen when heavy rains unleash more water than the ground can absorb, causing that water to pile up and flow to low-lying areas

The spacecraft now almost tips upside down relative to Mars to give its radar the best view.