A crewed mission to Mars would rank among the most complex and costly undertakings in human history—and US President Donald ...

This month will usher in two separate conjunctions — one between the moon and a rarely-visible Mercury, and another between ...

Towards the end of the month, Mercury will be visible in the western horizon, the space agency said. Californians can observe ...

Earth’s tilt is what causes the seasons; in the summer, when our planet’s pole is tipped toward the sun, the days are longer, ...

Summer will officially begin with this year's solstice on June 20. And on Wednesday, June 11, comes a "strawberry moon," the ...

Elon Musk, who founded SpaceX in 2002, has a bold vision for sending Starship to Mars. Experts weigh in on what's realistic ...

NASA is monitoring three asteroids soaring past the Earth at about 8,000 to 15,000 miles per hour, the biggest of which measures around 1,300 feet in diameter.

Spica is a binary star system located 250 light-years from Earth in the constellation Virgo. The waxing gibbous moon will ...

June sky shows planets before sunrise, Mars near Regulus, the glowing Milky Way, and the solstice with shifting daylight hours.

One June 1, the moon will be in conjunction with both Mars, and the star Regulus of the constellation Leo, albeit at different times this night. This same combination of events occurs again on June 29 ...

This June, the Milky Way’s brilliant heart lights up the night as planets align and the solstice sun marks Earth’s celestial tipping point.