As the Northern Hemisphere welcomes spring today, the Southern Hemisphere is marked with the first day of autumn.

The spring equinox can happen between March 19 and March 20. The longest day of the year, the summer solstice, arrives June 20. Spring is here, but don't put away those sweaters yet. A cold front is ...

Astronomical seasons are based on the position of the Earth as it makes its annual trip around the sun ... March 20 Summer solstice: June 20 Fall (autumnal equinox): Sept. 22 Winter solstice ...

Spring brings a dramatic change to Washington’s sky this year. The bright planets that have kept us company over the long ...

The Northern Hemisphere is welcoming Spring 2025 on March 20, also known as the vernal equinox. The jump into spring has come ...

The phenomenon of a Full Moon arises when our planet, Earth, is precisely sandwiched between the Sun and the Moon ... denotes a Super Moon.) The images below show the day-by-day phases of the ...

the winter solstice in the Northern Hemisphere, between December 20 and 23, creates the shortest day and longest night of the year, with the upper half of the earth is tilted towards the sun. The ...

A space robot said "goodnight" to the moon as it completed its mission, capturing the first high-definition images of a lunar ...