Physician letting blood from a patient. Attributed to Aldobrandino of Siena: Li Livres dou Santé. France, late 13th Century.
British Library, London, UK
A handful of manuscripts remain which give researchers valuable insights into medieval science.
The moon covers much of the sun during the total solar eclipse, in Merlo, San Luis, Argentina, July 2 2019.
While the world gathers to see an eclipse, what's the rest of nature doing?
The blood moon myths are many and varied, but, at the end of the day, it's just an eclipse.
As long as clouds don’t get in the way, the view should be spectacular.
A bunch of uncommon things all happening at the same time mean this full moon will have some special attributes.
Eclipses are fun, but no one wants to be left in the dark by a blackout.
The solar eclipse offered electricity network operators a "live drill" in how to cope with fluctuating output from renewable energy. They passed with flying colours.
A 1765 painting of Helios, the personification of the sun in Greek mythology.
The sun was worshiped as a deity in many cultures – and witnessing it get extinguished could be a particularly terrifying event.
A total solar eclipse will be visible across parts of the United States Aug. 21, treating amateur and professional astronomers alike to sights similar to this NASA’s Solar Dynamics Observatory ultraviolet image of the moon eclipsing the sun on Jan. 31, 2014.
If you've ever wondered why you can look at a solar eclipse and why it can harm your eyes, the answer is in the sun's rays.
Have telescopes, will travel: English astronomers await an 1871 eclipse in India.
The Illustrated London News, 1872
For centuries, scientists have known when and where eclipses will be visible. They pack their bags, head for the line of totality and hope for the best – which doesn't always happen.
People reject science such as that about climate change and vaccines, but readily believe scientists about solar eclipses, like this one reflected on the sunglasses of a man dangerously watching in Nicosia, Cyprus, in a 2015 file photo.
(AP Photo/Petros Karadjias)
People universally believe scientists' solar eclipse calendars, but vaccine warnings or climate predictions are forms of science that strangely do not enjoy equivalent acceptance.
Franklin’s lifelong quest was spreading scientific knowledge to regular people.
Franklin advanced a scientific – not supernatural – understanding of astronomical events such as eclipses. His satirical character 'Poor Richard' mocked those who bought into astrological predictions.
A solar eclipse observed over Grand Canyon National Park in May 2012.
Grand Canyon National Park
More than 2,000 years ago, the Babylonians understood the cycle of eclipses. They also regarded them as signs that could foretell the death of a king.
Hiscox and students practice for the big day with a weather balloon.
Meteorology researchers across the country are prepping experiments for the mini-night the eclipse will bring on August 21 – two minutes and 36 seconds without the sun in the middle of the day.
NASA’s projection of the August 21 solar eclipse.
An astronomer explains how and why – and when – eclipses happen, what we can learn from them, and what they would look like if you were standing on the moon.
NASA’s Juno probe will be the fastest object humanity has ever created when it approaches Jupiter.
From the high-speed journey to Jupiter to solar eclipses, meteor showers and planetary alignments visible in the skies above -- add these space highlights to your 2016 calendar.
Dramatic, but not apocalyptic.
Stanimir G Stoev
A rare super blood moon visible from parts of the Earth this month will delight those people lucky enough to see it. But why has this marvel of the solar system got some people so worried?
The moon moves out of totality as seen from Sydney during the December 2011 eclipse.
A total lunar eclipse will be visible from across all Australia this Saturday, April 4. But it will be a quick one. Rather than passing deep into the Earth’s shadow, the moon is skimming close to the shadow’s…
Eclipse at sunrise over Richmond, Virginia, USA in November 2013.
Sky Noir (Bill Dickinson)/Flickr
Each month, at the time of new moon, the sun and moon are together in the daytime sky. Most of the time the moon passes by unnoticed. But at least twice a year, somewhere on Earth will see the moon pass…
Just before totality on a total lunar eclipse.
At least twice a year, Earth comes between the sun and the moon. The result is a lunar eclipse, where we see the splendid sight of Earth’s shadow falling across the moon. Lunar eclipses are wonderful to…
Look up towards the east on Wednesday night (October 8) and a total lunar eclipse will be visible from across Australia. The moon will slowly move through Earth’s shadow, as the sun, Earth and moon fall…
A solar eclipse as seen in Albuquerque, New Mexico, in 2012 – similar to what many Australians will see this afternoon (weather permitting, of course).
Due to a rare alignment of events, many Australians will today experience a second eclipse this month. A partial solar eclipse will be visible from across Australia later this afternoon, following the…