Jan 22, 2025 · Neptune is the eighth and most distant planet from the Sun. It’s the fourth largest, and the first planet discovered with math.

Jun 14, 2023 · NASA-Led Study Pinpoints Areas Sinking, Rising Along California Coast

Nov 6, 2024 · Orbit and Rotation. One day on Neptune takes about 16 hours (the time it takes for Neptune to rotate or spin once). And Neptune makes a complete orbit around the Sun (a year in Neptunian time) in about 165 Earth years (60,190 Earth days).

Jan 29, 2025 · Neptune has 16 known moons. The first moon found – Triton – was spotted on Oct. 10, 1846, just 17 days after Neptune was discovered.

Jan 22, 2025 · Eris: Significant Dates. Jan 8, 2005: Scientists announce they have discovered a Pluto-sized world billions of miles beyond the orbit of Neptune.They nickname the tiny world Xena after a fictional television character. The discovery reignites a debate about the definition of a …

Nov 3, 2024 · Triton has a diameter of 1,680 miles (2,700 kilometers). Spacecraft images show the moon has a sparsely cratered surface with smooth volcanic plains, mounds and round pits formed by icy lava flows.

Nov 16, 2023 · The hottest part of the Sun is its core, where temperatures top 27 million°F (15 million°C). The part of the Sun we call its surface – the photosphere – is a relatively cool 10,000° F (5,500°C).

Feb 13, 2025 · A detailed guide to the night sky written by a NASA expert featuring full Moon lore, asteroid flybys, stars, galaxies, constellations, and more.

Jan 30, 2018 · The symbols for the planets, dwarf planet Pluto, Moon and Sun (along with the symbols for the zodiac constellations) were developed for use in both astronomy and astrology.

Jan 31, 2025 · Jupiter and Mars rule the sky on February nights. You'll find them high overhead in the evening, together with the winter constellations of Orion, Taurus, and Gemini. Appulses. Astronomers sometimes get picky about their terminology.