As spring advances, the night sky undergoes a quiet transformation. The familiar winter constellations fade toward the west, ...

A novel LEO constellation design uses grouped satellites and swarm optimization to achieve precise Earth observation, ...

X) Leo contains the 21st-brightest star, Regulus, or Alpha Leonis. Regulus (along with Aldebaran, Antares, and Fomalhaut) was one of the four Royal Stars of ancient Persia. XI) The constellation ...

Explore the wonders of the Northern Hemisphere's night sky with our guide to the best celestial sights you can observe with ...

The constellations overhead in May are dominated by Leo the Lion and Ursa Major the Great Bear.

A recent video created from images captured by Curiosity shows clouds tinted red and green flowing though the sky over Mars. Captured using the rover's Mastcam instrument on January 17, 2025, the ...

Life is full of trade-offs, and stargazing is no different. Nights are certainly warmer, but you have to stay up much later ...

In 2025, SpinLaunch unveiled Meridian Space, a highly differentiated LEO satellite constellation. Backed by leading investors, customers, and suppliers, Meridian Space is designed to deliver ...

But Mars lingers, drifting on a course toward Regulus, the brightest star in Leo, the lion ... the brightest star in the kite-shaped constellation Bootes, the herdsman — and also the brightest ...