Planets

Anu Ohja

Occupation: Director of the UK’s National Space Academy and a Director of the National Space Centre

Research Areas: Education, Skills, Human Spaceflight, Exploration Science

Gerard Kuiper

Gerard Kuiper
Credit: NASA

Occupation: Astronomer & Planetary Scientist

Year born: 1905

Research Areas: Atmospheres and Moons

Carl Sagan

Carl Sagan
Credit:NASA/JPL

Occupation: Astrophysicist, Author, TV presenter

Year born: 1934

Research Areas: Extraterrestrial Life, Planetary Science

Wedi’i anelu at ddisgyblion 11-14 oed, mae’r gweithgaredd hwn yn gwneud defnydd o algebra sylfaenol a graffiau i atgyfnerthu'r syniadau o effeithiau disgyrchiant a sut mae’r effeithiau yna yn dibynnu ar le ydych chi yng Nghysawd yr Haul.

Solar System In Your Pocket

Using a length of till-roll create a scale representation of the Solar System. Great for learning the order of the planets and for showing how they're spaced within the Solar System.

The Earth

Earth is the third planet from the Sun.

Planets

Exoplanet Kepler-20 Artist's impression — An artist's impression of the exoplanet Kepler-20
Credit: NASA/Ames/JPL-Caltech

A planet is an object which orbits a star.

Calculating your Age on another Planet

The Earth spins once every 24 hours which gives us the length of the day. It also orbits around the Sun once every year, which is about 365 days. However, other planets spin and orbit at different speeds, so their days and years are different lengths.