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The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...

NASA has discovered the third known interstellar object to pass through our solar system, but the icy snowball object poses ...

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If you looked at the churning clouds near Jupiter’s pole, they appear like ocean currents on Earth — as if you’re looking at ...

While Jupiter’s aurorae have been studied for decades, scientists have also just made a groundbreaking discovery on Mars: the first-ever detection of visible-wavelength aurora from a planetary ...

Saturn, Mercury, Neptune, Venus, Uranus, Jupiter and Mars are visible in the night sky right now. On Feb. 28, Mercury will join them, adding a seventh planet to the planetary parade.

Mars is distinctly reddish, rosey or peach color, down to the lower left of Jupiter. It’s the third-brightest planet, but the star Sirius is slightly brighter.

Venus, Mars, Jupiter and Saturn will be the easiest to spot. Uranus and Neptune also are part of the so-called alignment but will only be visible using a telescope.

NASA, ESA, CSA, Jupiter ERS Team/NYT A triple dose of celestial wonder is in the stars this week as Jupiter, Mars and the moon line up for a rare captivating display in the night sky.

Mars and Jupiter also currently appear unusually close together in the night sky, in what’s known as a conjunction.