Most defining moments of Elon Musk, the businessman and investor. <b<br/>r/>

Elon Musk's Most Controversial Actions

On Oct. 6, 1992, the United States and Russia signed an agreement to share astronauts and cosmonauts.



Known as the Agreement on Human Spaceflight Cooperation, this plan laid out the details for the joint Shuttle-Mir Program....

Can two versions of reality exist at the same time? Physicists say they can — at the quantum level, that is.

This black hole merger animation was created using data collected by the LIGO and Virgo gravitational wave detectors, an observation designated GW190412.



Credits: © N. Fischer, H. Pfeiffer, A. Buonanno (Max-Planck-Institut...

On Oct. 3, 1942, Germany did the first-ever successful test launch of a ballistic missile.



This missile was officially named Aggregat 4 (A4) but more commonly known as the V-2. The V-2 was designed by the famous German rocket...

On Oct. 2, 2015, the United Launch Alliance launched its 100th rocket!



The United Launch Alliance (ULA) is a private spaceflight company that was born in 2006 as a joint venture between Lockheed Martin and Boeing. For its...

Civil War myths both big and small persist to this day. LiveScience clears up a few.

The skeletal remains of a horse unearthed in Utah thought to date to the last ice age are actually much younger.

Chinese astronauts demonstrate hair cuts on aboard the Tiangong space station with a specially designed hair trimmer affixed with a vacuum to collect hair.



Credit: Space.com | footage courtesy: China Central Television (CCTV)...

A pair of NASA spacecraft know as the Escape and Plasma Acceleration and Dynamics Explorers (ESCAPADE) to be launched to Mars by a Blue Origin New Glenn rocket.



ESCAPADE will study how the "solar wind interacts with Mars’...

NASA's Curiosity rover has encountered patches of sharp “gator-back” rocks causing mission planners to look for a new route to continue exploring Mount Sharp.



Credit: Space.com | footage courtesy: NASA/JPL-Caltech/MSSS |...

The solar system is projecting with gold but scientists can't quite figure out where all this hard-to-make metal is being created.

The skeletal remains of a horse unearthed in Utah thought to date to the last ice age are actually much younger.

On Sept. 20, 1970, the Soviet Union's Luna 16 moon probe landed on the moon to retrieve a soil sample.



Four days later, it became the first robotic spacecraft to return a sample of lunar soil to Earth. Luna 16 was the first...

On Sept. 18, 1977, NASA's Voyager 1 spacecraft took a photo of Earth and the moon.



It was the first time both the Earth and the moon were captured in a single frame. At the time, Voyager 1 was more than 7 million miles away...

The magnetic barrier that protects Earthlings from radiation almost collapsed some 565 million years ago. Here’s what saved it.

The Chandra X-ray Telescope is investigating the habitability of exoplanets. NASA explains. <b<br/>r/>

Credit: NASA/CXC/A. Hobart

On Sept. 12, 1992, NASA astronaut Mae Jemison became the first African-American woman to go to space.



In NASA's early days, women and people of color were never selected to go to space. NASA didn't send a woman to space...

On Sept. 11, 1985, the International Cometary Explorer, or "ICE" became the first spacecraft to fly by a comet.



Originally launched as the International Sun-Earth Explorer-3 in 1978, ICE was one of three spacecraft built for...

On Sept. 10, 2011, NASA's GRAIL spacecraft launched on a mission to the moon! GRAIL, which stands for Gravity Recovery and Interior Laboratory, was sent to the moon to map its gravitational fields.



Scientists could study the...

On Sept. 9, 1982, the first private rocket launched from a Texas cattle ranch.



The Conestoga 1 rocket was designed by Space Services Inc. of America and built from spare parts of other rockets. It was named after a type of...

On Sept. 8, 2004, NASA's Genesis spacecraft crash-landed in Utah after its parachutes failed to deploy.



Genesis was NASA's first sample-return mission since the Apollo program, and the first to bring back samples from...

On Sept. 7, 1995, the space shuttle Endeavour launched on mission STS-69.



This was the 100th successful crew spaceflight mission for NASA. Endeavour lifted off from NASA's historic launch site at Kennedy Space Center's Pad...

Jezero Crater on Mars was once home to a lake, delta and rivers. See an animation of what it could have looked like when water poured into the crater billions of years ago and present day.



Credit: Space.com | animations: ESA/...