On this Day in History

On this Day in History in 1883: “Buffalo Bill” Cody puts on his 1st Wild West Show.
 
On this Day in History in 1006: Supernova observed by Chinese & Egyptians in constellation Lupus.
 
On this Day in History in 1969: Leonard Tose bought the NFL’s Philadelphia Eagles for $16,155,000.

Fun Fact of the Day

Fun Fact of the Day: The largest dwarf planet in the solar system is Pluto followed by Eris, Makemake, Haumea, with the smallest being Ceres. The order of the dwarf planets from closest to Sun outwards is Ceres, Pluto, Haumea, Makemake, with Eris being the furthest from the Sun.

On this Day in History

On this Day in History in 1803: Meteorites fall in L’Aigle, France.

On this Day in History in 1859: Dan Sickles is acquitted of murder on grounds of temporary insanity – 1st time this defense used successfully in the US.

On this Day in History in 1514: Copernicus makes his 1st observations of Saturn.

On this Day in History

On this Day in History in 1862: Congress establishes US Mint in Denver, Colorado.

On this Day in History in 1855: First train crosses Miss River’s first bridge, at Rock Island Illinois and Davenport Iowa.

On this Day in History in 753 B.C.E.: Romulus and Remus found Rome.

On this Day in History in 1998: Astronomers announced in Washington that they had discovered possible signs of a new family of planets orbiting a star 220 light-years away.

On this Day in History

On this Day in History in 295: 8th recorded perihelion passage of Halley’s Comet.
 
On this Day in History in 1702: Comet C/1702 H1 approaches within 0.0437 AUs of Earth.
 
On this Day in History in 1902: Marie & Pierre Curie isolate the radioactive element radium chloride.
 
On this Day in History in 1940: The First electron microscope was demonstrated by RCA.

Fun Fact of the Day

Fun Fact of the Day: Black holes come in a range of sizes.
 
There are at least three types of black holes, NASA says, ranging from relative squeakers to those that dominate a galaxy’s center.
 
Primordial black holes are the smallest kinds, and range in size from one atom’s size to a mountain’s mass.
 
Stellar black holes, the most common type, are up to 20 times more massive than our own Sun and are likely sprinkled in the dozens within the Milky Way.
 
And then there are the gargantuan ones in the centers of galaxies, called “supermassive black holes.” They’re each more than one million times more massive than the Sun.
 
How these beasts formed is still being examined.

On this Day in History

On this Day in History in 141: 6th recorded perihelion passage of Halley’s Comet.
 
On this Day in History in 1345: Saturn/Jupiter/Mars-conjunction: thought “cause of plague epidemic”
 
On this Day in History in 1964: ESRO established, European Space Research Organization.
 
On this Day in History in 1979: Columbia flies on Shuttle carrier aircraft to Kennedy Space Center.