Here's what to know about the upcoming 2025 summer solstice this week and when it last fell on June 22 — the rarest date for the longest day.

The summer solstice marks the beginning of astronomical summer each year, typically falling between June 20 and June 22. In ...

The summer solstice marks the beginning of astronomical summer each year, typically falling between June 20 and June 22. In ...

The 2025 summer solstice falls on Friday, June 20, at 10:42 p.m. ET, according to NASA and the Old Farmer's Almanac. This ...

This Friday, June 20, at 9:42 pm CST is the official start of astronomical summer and marks the longest day of the year. The ...

China’s Cangyu plans mixed-orbit commercial data relay satellite system Private firm Cangyu Space Technology is planning a ...

Small telescopes in Chile are first on Earth to cut through the cosmic noise, peering back more than 13 billion years to the ...

Did you know that a hurricane or tropical storm has never crossed the equator? The reason behind this fascinating phenomenon ...

NASA's GOLD mission found unexpected, and unexplainable, C-shapes and X-shaped formations in part of Earth's atmosphere ...

where it may remain intact or scatter its bits across a still unknown location on either side of the equator. The Soviet-era spacecraft will plunge through Earth’s atmosphere sometime between ...

The mission will aim to fly at a 90-degree circular orbit, meaning it will be exactly perpendicular to the equator. While in orbit, the crew plans to observe Earth’s polar regions from about ...