The spectacular discoveries NASA's MESSENGER made about Mercury.

Mercury, the closest planet to the Sun, is a world of blazing heat, freezing nights, and endless mysteries. Recent photos ...

Venus: Venus dazzles in the eastern sky before sunrise, shining brightly for a couple of hours each morning. It’s joined by ...

To get a glimpse of the “Swift Planet,” EarthSky suggests waiting for the sun to set before looking west for the planet ...

From that point on, Hasselblad cameras flew on every Mercury, Gemini and Apollo mission, including the unforgettable Apollo ...

NASA’s Jet Propulsion Laboratory (JPL) has shared its skywatching highlights - revealing what will light up the sky in July ...

NASA also points out that July and August is an excellent chance to view the constellation Aquila, also known as the eagle as ...

Mars shines in the evening, and is joined briefly by Mercury. Jupiter joins Venus as the month goes on. And all month, look ...

Despite being covered in impact craters that could potentially send pieces of the planet into space, we have never found a ...

As the closest planet to the Sun, Mercury is exposed to the star's enormous gravitational field. And it's really stressful.

Trump’s NASA budget plans look to cut its public relations funding by half, but already the agency is shuttering social media accounts that include those dedicated to popular missions including ...

Alongside a crescent moon, Mercury, Venus and Saturn will become visible to stargazers just before dawn on Friday morning. According to NASA, the planetary phenomenon will be clearest about 45 ...