Image (Credit): E.M. Antoniadi’s 1930 book La Planete Mars. (Linda Hall Library)
On this day in 1944, Greek-French astronomer Eugène Michel Antoniadi passed away in Paris, France.
Mr. Antoniadi was one of the astronomers that battled the idea of a civilization creating canals on the surface of Mars, putting him at odds with American astronomer Percival Lowell. While he was initially open to the idea, he later believed the canals to be an optical illusion.
Image (Credit): The visual message on the Pioneer 10 and 11 plaques. (NASA Ames)
On this day in 2003, NASA heard its last message from Pioneer 10, the Jupiter space probe. Launched in 1972, it was the first spacecraft to cross the asteroid belt between Mars and Jupiter on its way to the outer planets. It is also one of only five spacecraft to leave our solar system.
If all goes well, in about 2 million years the Pioneer 10 spacecraft will encounter the star Aldebaran. Maybe some civilization in that solar system will be arguing about this object floating through the neighborhood the way we have argued about the origins of the interstellar object we call 3I/ATLAS.
Image (Credit): Mission patch for Pioneer 10 and 11. (NASA)
Image (Credit): Hermann Julius Oberth. (European Space Agency)
On this day in 1989, rocket pioneer Hermann Julius Oberth died. He was born in Austria-Hungary in 1894 and at a young age was inspired by the rockets in the fictional stories by Jules Verne, such as From the Earth to the Moon.
Oberth’s interest in the stories of Verne led him to build his first rocket at the age of 14. His doctoral dissertation was on rocketry, he wrote books on rocketry, and he later joined an amateur rocketry group called the “Spaceflight Society” where he mentored other rocket enthusiasts, including Wernher von Braun.
Oberth was unable to get a security clearance to work on the Nazis V-2 rocket, thereby limiting his value to Americans following World War II, unlike Wernher von Braun and others who came to the United States under Project Paperclip and later assisted with NASA’s Apollo program.
Wernher von Braun was still able to get Oberth a position with the U.S. Army after the war and paid tribute to his mentor by stating:
I have a boundless admiration for the solitary genius which enabled him to bring into focus all of the essential elements of a gigantic concept, together with the human greatness which allowed him, in shy reserve, to bear with equanimity the “crucify him” as well as the “hosannas” of public opinion. I myself owe him a debt of gratitude not only for being the guiding light of my life but also for my first contact with the theoretical and practical aspects of rocket technology and space travel.
Oberth continues to be known today as the “Father of Space Travel.”
Image (Credit): Percival Lowell’s mausoleum just steps away from the Lowell Observatory in Flagstaff, AZ. (Atlas Obscura)
On this day in 1916, American astronomer Percival Lowell died at the age of 61 in Flagstaff, AZ. He will forever be remembered for his incorrect theory concerning canals on Mars as well as his better theory about a ninth planet, which contributed to the discovery of Pluto 14 years by Clyde Tombaugh, who was working at the Lowell Observatory in Flagstaff.
Some interesting facts about Mr. Lowell’s life includes:
After graduating from Harvard with a degree in mathematics yet spent six years running a cotton mill;
He traveled extensively to Asia and wrote numerous books about the region;
He was a dedicated pacifist; and
His greatest contribution to astronomy related to the preferred placement of observatories.
Speculation has been singularly fruitful as to what these markings on our next to nearest neighbor in space may mean. Each astronomer holds a different pet theory on the subject, and pooh-poohs those of all the others. Nevertheless, the most self-evident explanation from the markings themselves is probably the true one; namely, that in them we are looking upon the result of the work of some sort of intelligent beings. . . . The amazing blue network on Mars hints that one planet besides our own is actually inhabited now.
Now when we think that each of these stars is probably the centre of a solar system grander than our own, we cannot seriously take ourselves to be the only minds in it all.
Image (Credit): The Expedition 1 crew of Yuri P. Gidzenko (left), William M. Shepherd, and Sergei K. Krikalev in the ISS’s Zvezda Service Module. (NASA)
It was 25 years ago on this day that the Expedition 1 crew arrived at the International Space Station (ISS), which marked the beginning of very successful space collaboration between five space agencies from the United States, Russia, the European Union, Japan, and Canada.
The Expedition 1 crew, arriving at the ISS aboard a Russian Soyuz capsule, consisted of NASA astronaut William M. Shepherd and Russian cosmonauts Yuri P. Gidzenko and Sergei K. Krikalev. This first mission of four months focused on the continued assembly of the station, with the Expedition 2 crew arriving in March 2001 aboard Space Shuttle Discovery.
In 24 hours, the space station makes 16 orbits of Earth, traveling through 16 sunrises and sunsets.
The living and working space in the station is larger than a six-bedroom house (and has six sleeping quarters, two bathrooms, a gym, and a 360-degree view bay window).
A spacecraft can arrive at the space station as soon as four hours after launching from Earth.
The space station travels an equivalent distance to the Moon and back in about a day.
Image (Credit): Drawing of the International Space Station with all of the elements labeled. (NASA)
Our Awesome Universe 