What are some interesting facts about the planet Mercury?
Facts about Mercury. Mercury does not have any moons or rings. Mercury is the smallest planet. Mercury is the closest planet to the Sun. Your weight on Mercury would be 38% of your weight on Earth. A solar day on the surface of Mercury lasts 176 Earth days. A year on Mercury takes 88 Earth days. It’s not known who discovered Mercury.
How many Earth days does a day on Mercury have?
Mercury is a terrestrial planet. It is small and rocky. Mercury doesn’t really have an atmosphere. A day on Mercury lasts 59 Earth days. A year on Mercury lasts 88 Earth days. Mercury does not have any moons. Mercury is the closest planet to the sun. Venus is Mercury’s neighboring planet.
What makes Mercury a difficult planet to visit?
Mercury Spacecraft Visits Mercury’s proximity to the Sun and speed relative to the Earth (47km/s compared to 30km/s) makes it a difficult planet to visit.
What does the surface of Mercury look like?
The cliffs were created billions of years ago as Mercury went through a cooling process. A majority of the surface of Mercury would look like a kind of greyish-brown color to the human eye. There are bright streaks that are called “crater rays,” caused when a comet or asteroid hits the surface.
What kind of symmetry does Micrasterias have?
Its species vary in size reaching up to hundreds of microns. Micrasterias displays a bilateral symmetry, with two mirror image semi-cells joined by a narrow isthmus containing the nucleus of the organism. This dual semi-cell structure is unique to the group of green algae to which Micrasterias belongs.
Where is the nucleus of a Micrasterias found?
Micrasterias species consist of two semicells that are almost entirely filled with chloroplasts, with a nucleus that lies at the center where the two semicells are joined together.
How big does a Micrasterias alga get?
Micrasterias is a unicellular green alga of the order Desmidiales. Its species vary in size reaching up to hundreds of microns.