|
|
|
|
|
|
Joined: May 2010
Posts: 12,055 Likes: 30
BellaOnline Editor Modern Day Human
|
OP
BellaOnline Editor Modern Day Human
Joined: May 2010
Posts: 12,055 Likes: 30 |
On this day in 1840 - March 23rd - American polymath John William Draper produced the first detailed photograph of the Moon.It was the first astrophotograph taken in North America.
|
|
|
|
|
|
|
|
|
|
|
|
|
Joined: May 2010
Posts: 12,055 Likes: 30
BellaOnline Editor Modern Day Human
|
OP
BellaOnline Editor Modern Day Human
Joined: May 2010
Posts: 12,055 Likes: 30 |
On this day in 1893 - March 24th - German astronomer Walter Baade was born.
Baade, who worked at Mt Wilson Observatory in California for many years, defined two distinct populations of stars, and his discovery that there are two types of Cepheid variable star meant that his recalculation of the known universe doubled the size calculated by Hubble.
|
|
|
|
|
|
|
|
|
|
|
|
|
Joined: May 2010
Posts: 12,055 Likes: 30
BellaOnline Editor Modern Day Human
|
OP
BellaOnline Editor Modern Day Human
Joined: May 2010
Posts: 12,055 Likes: 30 |
On this day in 1665 - March 25th - Christiaan Huygens discovered Saturn's moon Titan.The European Space Agency (ESA) Titan lander was named for Huygens, a prominent 17th century Dutch mathematician and scientist.
|
|
|
|
|
|
|
|
|
|
|
|
|
Joined: May 2010
Posts: 12,055 Likes: 30
BellaOnline Editor Modern Day Human
|
OP
BellaOnline Editor Modern Day Human
Joined: May 2010
Posts: 12,055 Likes: 30 |
On this day in 1972 - March 27th - the Soviet probe Venera 8 was launched.Venera 8 made the first completely successful landing on Venus, and sent data from the surface for fifty minutes before succumbing to the intense pressure and searing temperature.
|
|
|
|
|
|
|
|
|
|
|
|
|
Joined: May 2010
Posts: 12,055 Likes: 30
BellaOnline Editor Modern Day Human
|
OP
BellaOnline Editor Modern Day Human
Joined: May 2010
Posts: 12,055 Likes: 30 |
On this day in 1802 - March 28th - Heinrich Olbers, German physician and astronomer, discovered Pallas.
Pallas was the second asteroid to be discovered, and it was counted as a planet at the time, as Ceres had been.
|
|
|
|
|
|
|
|
|
|
|
|
|
Joined: May 2010
Posts: 12,055 Likes: 30
BellaOnline Editor Modern Day Human
|
OP
BellaOnline Editor Modern Day Human
Joined: May 2010
Posts: 12,055 Likes: 30 |
On this day in 1807 - March 29th - Heinrich Olbers, German physician and astronomer, discovered Vesta.
Olbers discovered Vesta almost five years to the day after his discovery of Pallas. Vesta was the third asteroid to be discovered, and it was also counted as a planet at the time. Like Ceres, it's been visited by NASA's Dawn mission.
|
|
|
|
|
|
|
|
|
|
|
|
|
Joined: May 2010
Posts: 12,055 Likes: 30
BellaOnline Editor Modern Day Human
|
OP
BellaOnline Editor Modern Day Human
Joined: May 2010
Posts: 12,055 Likes: 30 |
On this day in 1974 - March 29th - NASA's Mariner 10 spacecraft made what was the first ever flyby of Mercury.
|
|
|
|
|
|
|
|
|
|
|
|
|
Joined: May 2010
Posts: 12,055 Likes: 30
BellaOnline Editor Modern Day Human
|
OP
BellaOnline Editor Modern Day Human
Joined: May 2010
Posts: 12,055 Likes: 30 |
On this day in 1997 - March 31st - The Pioneer 10 mission officially ended.
NASA's Pioneer 10 was the first spacecraft to go through the asteroid belt and the first to fly by Jupiter. After the end of the mission, for a time there was still contact with the spacecraft to record telemetry as it headed out into the Kuiper Belt. It's currently about 126 AU from Earth.
|
|
|
|
|
|
|
|
|
|
|
|
|
Joined: May 2010
Posts: 12,055 Likes: 30
BellaOnline Editor Modern Day Human
|
OP
BellaOnline Editor Modern Day Human
Joined: May 2010
Posts: 12,055 Likes: 30 |
On this day in 1997 - April 1st - Comet Hale-Bopp made its closest approach to the Sun.
The comet was dubbed the Great Comet of 1997 and was probably the most widely observed comet of the 20th century.
|
|
|
|
|
|
|
|
|
|
|
|
|
Joined: May 2010
Posts: 12,055 Likes: 30
BellaOnline Editor Modern Day Human
|
OP
BellaOnline Editor Modern Day Human
Joined: May 2010
Posts: 12,055 Likes: 30 |
On this day in 1845 - April 2nd - French physicists Leon Foucault and Louis Fizeau took the first successful photograph of the Sun.
|
|
|
|
|
|
|
|
|
|
|
|
We take forum safety very seriously here at BellaOnline. Please be sure to read through our Forum Guidelines. Let us know if you have any questions or comments!
|
|
|
|
|
|
|
|
|
|
|
This forum uses cookies to ensure smooth navigation from page to page of a thread. If you choose to register and provide your email, that email is solely used to get your password to you and updates on any topics you choose to watch. Nothing else. Ask with any questions!
|
|
|
|
|
|
|
|
|
|