close up view of the sun

The Monday, April 8, 2024, total solar eclipse will cross North America, passing over Mexico, the United States, and Canada. The total solar eclipse will begin over the South Pacific Ocean. Weather permitting, the first location in continental North America...

Perihelion is the closest point in orbit to the Sun Earth's closest approach to the Sun this year was January 4, 16:17 (UTC). On this day, the image captured from Sydney using a telescope and H-alpha filter has been posted.

Many people have heard of a movie called Interstellar. The interstellar space begins where the Sun's magnetic field ends. This region is beyond the solar system. To be more precise, the interstellar region begins where the true boundaries of our...