References

Buying Guide Here are the best telescopes for deep space — gaze far into the night sky and survey the cosmos in impressive detail.

Reference Perihelion is the point at which an orbiting body is closest to the sun. The word comes from Greek and literally means around (peri) the sun (helios).

Reference Winter Solstice has long marked a time of rebirth, behind it are fascinating astronomical events.

Reference A solar eclipse occurs when the moon positions itself between Earth and the sun, casting a shadow over Earth. We explore the type of solar eclipses here.

Reference Find out when you can catch the best meteor showers this year with our 2026 meteor shower calendar.

Reference The next annular solar eclipse will occur on Feb. 17, 2026.

From the Upside Down through the Devil's Anus and beyond. Here are 6 times these theoretical wormholes turned up in sci-fi shows and movies.

Reference How cold is space? Does it ever drop to absolute zero, and what happens if you fall into it without a spacesuit?

Reference The summer solstice marks the start of astronomical summer and the longest day of the year. Here we explore when the summer solstice occurs and why.

Reference The next solar eclipse will be on Feb. 17, 2026.