Answer to Question 1
They were the first spacecraft to soft land on the planet and send images of the surface back to Earth.
Answer to Question 2
Uranus passed in front of a star, and the star's light fluctuated before and after the occultation. These rapid changes were mapped by photoelectric photometry to map the rings. Later observations found them brighter in the infrared, for as the dark material absorbs sunlight, the absorbed energy heats up the rings particles to the point that in the infrared, they are hotter than the planet's surface clouds.
Understanding cells in terms of their molecular components.
Two important changes occur in the upper airway in croup:The epiglottis swells, thereby occluding th
The Moon passing in front of the Sun, from the STEREO-B spacecraft.
Images of the Russian Domain
Hydrolysis reactions for some biochemically important phosphate compounds (part 1)
A fly on a Venus Flytrap plant