Interesting links

• https://www.nasa.gov/ - the United States Space agency

• http://www.esa.int/ESA - the European Space Agency

• http://www.space.com/ - a space and astronomy news website

• http://www.seasky.org/solar-system/solar-system.html - a tour of the Solar System

• https://apod.nasa.gov/apod/astropix.html - a fascinating picture every day

• http://www.esa.int/ESA/Our_Missions - page with famous missions on ESA

• https://www.nasa.gov/missions - page with famous missions on NASA