Fluorite triplet TakahashiTokyo, Japan The ​​FCT-65D is a low-dispersion Fluorite Triplet refractor. It has a 400mm focal length and a f/6.2 focal ratio, and a high Strehl ratio of .98. It also comes ...

Tech billionaire Elon Musk and his son join Donald Trump on stage at rally Tesla and SpaceX owner Elon Musk and his son X joined president-elect Donald Trump on stage at a victory rally.

Around midnight tonight in the east, a 55%-lit waning gibbous moon will be just a tenth of a degree from Spica, the brightest star in the constellation of Virgo and about 250 light-years distant ...

Glittering stars in the night sky are always a majestic sight that can stop you in your tracks. But this month six planets grace the sky in what's known as a planetary parade, and most can be seen ...

A ceasefire agreement involving the release of Israeli hostages and hundreds of Palestinian prisoners has been reached after more than a year of deadly fighting in Gaza. The ceasefire will take ...