Night

Night is the period of ambient darkness from sunset to sunrise during each 24-hour day, when the Sun is below the horizon. The exact time when night begins and ends depends on the location and varies throughout the year, based on factors such as season and latitude. The word can be used in a different sense as the time between bedtime and morning. In common communication, the word night is used as a farewell, mainly when someone is going to sleep or leaving. Astronomical night is the period between astronomical dusk and astronomical dawn when the Sun is between 18 and 90 degrees below the horizon and does not illuminate the sky.

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The DART spacecraft slammed into an asteroid last night at 14,000 miles per hour, capturing these breathtaking images during its final approach.

See Jupiter At Its Brightest Until 2129 And A Super-Slim Crescent Moon: The Naked Eye Night Sky This Week

Running at night: How does it affect the body?

Charging cars at home at night is not the way to go, study finds

Too many electric cars charging at night may overload electrical grid

An Early Warning Sign of Dementia Risk May Be Keeping You Up at Night, Says New Study

Astronomy For Equity: Building Hope Through the Night Sky

Autumnal equinox 2022: Twilight and myths of the equinox and 6-month polar night

Jupiter to Reach Opposition, Closest Approach to Earth in 59 Years - Stargazers can expect excellent views of Jupiter the entire night of Monday, Sept. 26 when the giant planet reaches opposition

SpaceX launches 54 Starlink satellites to orbit after 5 weather delays

Your Final Chance To See The Milky Way As ‘King Of Planets’ Peaks: The Naked Eye Night Sky This Week

Survey finds stress and worry over the state of the world keeps some Americans up at night

Uranus will vanish during 'lunar occultation' Wednesday night

Webb Telescope Captures The Most Beautiful Object In The Night Sky In Jaw-Dropping New Release

See The Moon And Mars Align In A Twilight Tryst: The Naked-Eye Night Sky This Week

Huge satellite could outshine all stars and planets in the night sky

Huge satellite could become the second brightest object in night sky

Why Pain Feels Worse at Night

Catch Mars near the bright star Aldebaran Tuesday night (Sept. 6)

See Venus ‘Kiss’ A Star And The ‘Harvest Moon’ At Its Brightest And Best: The Naked-Eye Night Sky This Week