The innermost planets straddle nighttime, with Mercury in the evening and the greatest western elongation of Venus in the ...

In the Northern Hemisphere, June 20 is the day on which the sun is highest in the sky, aka the summer solstice! This is the ...

Earth’s sister planet reaches greatest western elongation and dichotomy as the waxing Moon slides along the ecliptic in the ...

The consecutive failures may have decreased the likelihood SpaceX can meet NASA’s goal of landing on the moon in 2027, ...

Lunar exploration is entering a new era. Long after the Apollo missions, a renewed international interest comes with ...

Ninth test launch follows grounding of nearly two months Starship flew with re-used booster rocket for first time Musk had ...

Tianwen, which means "questions to heaven," is the name given to China's program of robotic Solar System exploration. Tianwen ...

Within the last two decades ... and partners developing a space station in lunar orbit that could serve as a gateway to destinations on the moon’s surface—and beyond.

China’s Tianwen-2 mission has launched to explore an asteroid that may be a piece of the moon, as well as an active asteroid ...

The CZ-3B/E Y110 flew on an eastbound path and launched Tianwen-2 on an Earth escape trajectory. Tianwen-2 will orbit ...

Fuel leak is the likely culprit for Starship’s loss of control on orbit, which prevented SpaceX from collecting key ...