The X-37B spacecraft’s latest mission was shorter than the last but tried several new maneuvers and approaches during its ...

The Moon will reach perigee, which is the point in its elliptical orbit where it is closest to Earth, on Saturday, March 29.

In most years, the first day of spring lands on March 20. However, in 2020 the spring equinox arrived on March 19. In 2021, ...

Spain, and the northern hemisphere in general, will be able to see a partial solar eclipse. In Spain, it will begin at 10:48 a.m. and last approximately 21 ...

The vernal equinox marks the start of spring in the Northern Hemisphere — so does that mean this is the only day out of the ...