The Little Gem Nebula, also known as the NGC6818, is about 6000 light-year long, has two different layers of gas and dust, and has a bright bubble inside.

The V-2 was the world's first long-range guided ballistic missile. The liquid-propellant rocket engine used to launch the missile was developed in Germany as a "defense weapon" during World War II. Essentially, it was a weapon used to attack the...

The sun is a fusion reactor that is running out of fuel. The Sun has a lifespan of about 5 billion years. This does not mean that we have time for another 500 billion years. A recently published study estimates...

A rocket - ??? m high, about 36 m tall - weighs 2.8 million kilograms, including fuel. Capacity to carry 130 tons of material in Earth's orbit. Ability to carry up to 50 tons of material to the moon. Remember...