This infographic highlights NASA’s twin robot geologists, the Mars Exploration Rovers (MER) Spirit and Opportunity. The rovers landed on the Red Planet in 2004, in search of answers about the history ...

Chapter 5: Planetary Orbits Chapter Objectives Upon completion of this chapter you will be able to describe in general terms the characteristics of various types of planetary orbits. You will be able ...

Monday’s single-sol plan included a marathon 45-meter drive (about 148 feet), which put us in position for two full sols of ...

Noctilucent or night-shining clouds are rare, high-altitude clouds that glow with a blue silvery hue at dusk or dawn when the Sun shines on them from below the horizon. These ice clouds typically ...

The first visible-light image of green aurora on Mars (left), taken by the Mastcam-Z instrument on NASA’s Perseverance Mars rover. On the right is a comparison image of the night sky of Mars without ...

One year ago today, a total solar eclipse swept across the United States. The event was a cornerstone moment in the Heliophysics Big Year, a global celebration of the Sun’s influence on Earth and the ...

Follow-up research on a 2023 image of the Sagittarius C stellar nursery in the heart of our Milky Way galaxy, captured by NASA’s James Webb Space Telescope, has revealed ejections from still-forming ...

Final Flight and Retirement of the DC-8 The DC-8 Airborne Science Laboratory flew its last science flight during the international Airborne and Satellite Investigation of Asian Air Quality mission ...

An international team of researchers has discovered that previously observed variations in brightness of a free-floating planetary-mass object known as SIMP 0136 must be the result of a complex ...

The planets Mercury, Venus, Earth, and Mars, are called terrestrial because they have a compact, rocky surface like Earth's terra firma. The terrestrial planets are the four innermost planets in the ...

Contingency Plans Following the events of 1999, the Hubble team created a contingency plan in preparation for a time when the spacecraft might find itself with less than three working gyros again. The ...

The source is 1ES 1927+654, a galaxy located about 270 million light-years away in the constellation Draco. It harbors a central black hole with a mass equivalent to about 1.4 million Suns. “In 2018, ...