For people in the continental United States, here’s your historic probability of getting a white Christmas in 2018.

According to the recent IPCC Special Report, warming of 1.5°C (2.7°F) is an important threshold for many climate impacts. What might our planet look like with 1.5°C of warming?

Audubon’s annual Christmas Bird Count is one of the longest-running citizen science projects in existence. How to participate.

As far back as 40,000 years ago, cave-dwellers in what's now Turkey, Spain, France and Germany all used a method of date-keeping based on the stars. Some of their cave paintings aren't just depictions of wild animals; instead they represent constellations in the night sky.

Astronomer Wanda Díaz Merced - who began losing her sight in her 20s - presented one of TED’s most-watched astronomy videos. Here's how turning a telescope's digital data into sound can help reveal hidden patterns.

Breathtaking space images inspire us. But what if you couldn't see them? Amelia Ortiz Gil explains how tactile models of the constellations, moon and planets can give people - blind or sighted - a better appreciation of the universe.

Signals from Mars will take 8 minutes to travel to Earth on Monday. By the time we hear that InSight has reached the top of Mars' atmosphere, the lander will have already touched down safely ... or crashed.

On November 26, 2018, NASA’s InSight lander will make its daring descent to Mars' surface. NASA engineers hope to broadcast word of a successful touchdown at 20:00 UTC (3 p.m. EST), with live landing commentary starting about an hour before.

"I'm sleepy because turkey is high in tryptophan." True? Or myth?

"We're returning to the moon, preparing to go beyond to Mars. We are going. We are NASA."