Betelgeuse, Orion's shoulder, is a red supergiant hundreds of times wider than the Sun. Placed at the centre of our system, its surface would reach past Mars's orbit and into the asteroid belt. It will explode as a supernova one day, but to astronomers, 'soon' can mean 100,000 years from now.
A large share of Earth's water molecules formed in the interstellar cloud that existed before the Sun was even born, more than 4.6 billion years ago. You are literally drinking a cosmic fossil.
By day, the Martian sky looks butterscotch because of fine dust hanging in the air. But at dusk, those same grains scatter blue light forward, creating a bluish glow around the Sun. Rovers have photographed these blue sunsets: the exact reverse of what we see on Earth.