Dr. Manuela Rossol 👩‍🔬🔬🔭さんのイラストまとめ

#OTD in 1977, Voyager 1 was launched on its way to Jupiter & Saturn. It has reached interstellar space in 2012. 📷 NASA

#OTD in 1972, Pioneer 10 was the first human-made space probe to enter the asteroid belt, located between the orbits of Mars and Jupiter.

#OTD in 1940, British entomologist and illustrator Margaret Fountaine died, with a butterfly net in her hands, from a heart attack in Trinidad. #WomenInSTEM

APOD "From Orion to the Southern Cross" 📷 Lucy Yunxi Hu https://t.co/bG5EWk4yQ2

#OTD in 1610, Galileo Galilei discovered 3 moons of Jupiter (Io, Europa & Ganymede), a week later the fourth moon (Callisto).

#OTD in 1858, English photographer William Usherwood became the first to successfully photograph a comet. The photograph of Donati's Comet has not survived. 📷 Painting of Donati's Comet

#OTD in 1977, Voyager 1 was launched on its way to Jupiter & Saturn. It has reached interstellar space in 2012. 📷 NASA

#OTD in 1885, Isaac Ward observed a supernova in the Andromeda galaxy, the only one seen in that galaxy so far. 📷 Andromada galaxy (right), NASA/JPL-Caltech

#OTD in 1972, Pioneer 10 was the first human-made space probe to enter the asteroid belt, located between the orbits of Mars and Jupiter.

#OTD in 1983, Pioneer 10 crossed the orbit of Neptune. It was the first human-made object to travel this far.