Tag: science & technology

Venus is the hottest planet in our solar system, with surface temperatures around 465°C, due to its thick atmosphere that traps heat (greenhouse effect). Mercury is closer to the sun but lacks an atmosphere to retain heat.

Halley's Comet (often misspelled as Hales) has an orbital period that averages about 76 years, though it varies between 74 and 79 years. It is the only known short-period comet that is regularly visible to the naked eye.

The International Astronomical Union currently recognizes five dwarf planets in our solar system: Ceres (in the asteroid belt), Pluto, Haumea, Makemake, and Eris (all in the Kuiper Belt). This number increased from the earlier recognition of just three dwarf planets.

Venus has a retrograde rotation, meaning it rotates on its axis in the opposite direction compared to most other planets in our solar system. This causes the sun to rise in the west and set in the east on Venus. Uranus also has an unusual axial tilt but doesn't truly orbit 'opposite' in the same sense.

The Great Red Spot is a giant storm on Jupiter that has been raging for at least 300-400 years since it was first observed. It is not on Uranus, Saturn, or the Sun. The storm's persistence makes it one of the longest-lived storms in the solar system.

Olympus Mons is the tallest volcano and highest peak in the solar system, located on Mars. It stands about 22 km (13.6 miles) high, nearly three times the height of Mount Everest. It is not on Pluto or Earth.

Jupiter is the largest planet in our solar system, with a mass more than twice that of all other planets combined. It has a diameter of about 143,000 km at its equator. Saturn is the second-largest, while Mercury and Pluto are much smaller.