Mercury and Mars in May
The month of May brings with it two different planetary wonders, allowing us to recreate calculations first made 300 years ago
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The month of May brings with it two different planetary wonders, allowing us to recreate calculations first made 300 years ago
Measure the distance from Earth to the Moon using high-school geometry and an international network of schools and observatories.
Right now (and continuing until late February 2016), Mercury, Venus, Saturn, Mars, and Jupiter are visible in the sky in a straight line: a rare astronomical show.
Understanding Earth’s climate system can teach us about other planets.
Different stars shine with different colours, and you can use a light bulb to help explain why.
The path to the Moon is paved with many challenges. What questions do the next generation of space explorers need to answer?
Clues to the history of the Earth, the Milky Way and the Universe are hidden on the lunar surface.
On 26 December 2013, after a long and exciting trip, 56 secondary-school students from 18 countries arrived at their destination: the picturesque alpine village of Saint-Barthélemy, Italy, where the Astronomical Observatory of the Autonomous Region of the Aosta Valley (OAVdA) was built because of…
How do astronomers investigate the life cycle of stars? At the European Space Agency, it’s done using space-based missions that observe the sky in ultraviolet, visible and infrared light – as this fourth article in a series about astronomy and the electromagnetic spectrum describes.
Mercury and Mars in May
Geometry can take you to the Moon
Planet parade in the morning sky
Planetary energy budgets
Starlight inside a light bulb
The challenging logistics of lunar exploration
Lunar Diary: a chronicle of Earth’s journey through space and time, as seen from the Moon
Camping under the stars — the ESO Astronomy Camp 2013
More than meets the eye: how space telescopes see beyond the rainbow