Solar System

Cosmic Companion: A Mysterious Asteroid to Shadow Earth for Two Months

Discovered just a month and a half ago, on August 7, an asteroid is now approaching Earth’s orbit and will arrive on Sunday, September 29.

For about two months, this small cosmic companion will move parallel with Earth as both orbit the Sun. This unusual celestial visitor is a Near Earth Object (NEO), a category that includes small celestial bodies like asteroids and comets.

Astronomers spot new tiny moons around Neptune and Uranus

Astronomers have found three previously unknown moons in our solar system, two additional moons circling Neptune and one around Uranus.

The distant tiny moons were spotted using powerful land-based telescopes in Hawaii and Chile, and announced Friday by the International Astronomical Union's Minor Planet Center.

The latest tally puts Neptune at 16 known moons and Uranus at 28.

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