Exploring the Expanse: 30 Years of Hubble Discoveries

The Celestial Zoo: A Map of 200+ Objects in our Universe

Humans have been observing the universe for thousands of years.

And while we haven’t figured out all the answers quite yet, we’ve made some remarkable discoveries when it comes to learning about outer space.

What are some of the most notable observations that scientists have discovered so far? This map of outer space by Pablo Carlos Budassi highlights more than 200 celestial objects in our universe and provides details and facts about each one.

The Types of Celestial Objects Mapped

To create this graphic, Budassi used a combination of logarithmic astronomical maps from Princeton University, as well as images from NASA.

The visualization highlights 216 different celestial objects that are color-coded and organized into five overarching categories:

• Moons and Asteroids
• Planets
• Galaxies
• Star System
• Great Scales/Superclusters

At the center of the map is the Sun, which is the largest object in our Solar System. According to NASA, the Sun’s volume is equivalent to 1.3 million Earths. The Sun is the powerhouse of life here on Earth—its energy provides our planet with a mild, warm climate that keeps us alive, keeping the Earth from becoming a frozen rock.

While the Sun is the only star in the Solar System, there is a neighboring star system called Alpha Centauri that’s approximately 4.37 light-years away. It’s made up of three stars—Proxima Centauri, Alpha Centauri A, and Alpha Centauri B.

Proxima Centauri, as the Latin name indicates, is the closest of the three to Earth and has an Earth-sized planet in its habitable zone.

The Life of a Star

In a star’s early stages, it’s powered by hydrogen. However, when its hydrogen stores are depleted, some stars are able to fuse helium or even heavier elements.

Stars similar to the size of the Sun will grow, cool down, and eventually transform into a red giant. The Sun has about 5,000 million more years before it reaches its red giant stage, but when that happens, it will likely expand to the point where it swallows up the Earth.

While stars emit energy for years, it’s important to note that they don’t shine for eternity. Their exact life span depends on their size, with bigger stars burning out faster than their smaller counterparts.

But as light from distant objects millions of light-years away takes a long time to reach us here on Earth, the largest of stars shine for hundreds of millions of years after they die.

Just How Big is Our Universe?

Some experts believe that the universe is infinite, while others argue that we can’t yet know for certain because current measurements aren’t accurate enough.

However, scientists believe that our observable universe extends about 46 billion light-years in every direction, giving it a diameter of roughly 93 billion light-years.

But just how much of the universe extends beyond what we can see? We may never find out.

Mapped: The World’s Rocket Launch Sites

From Sputnik 1 to today’s massive satellite constellations, every object in space was launched from just a handful of locations.

The map above, from BryceTech, is a comprehensive look at the world’s spaceports (both orbital and sub-orbital) as well as ballistic missile test sites.

The World’s Major Spaceports

Though the graphic above is a detailed list of many types of rocket launch sites, we’ll focus on major sites that are sending satellites and passengers into sub-orbit, orbit, and beyond.

Editor’s note: The above table includes all sites that are operational, as well as under construction, as of publishing date.

The list above covers fixed locations, and does not include SpaceX’s autonomous spaceport drone ships. There are currently three active drone ships—one based near Los Angeles, and the other two based at Port Canaveral, Florida.

Two of the most famous launch sites on the list are the Baikonur Cosmodrome (Kazakhstan) and Cape Canaveral (United States). The former was constructed as the base of operations for the Soviet space program and was the launch point for Earth’s first artificial satellite, Sputnik 1. The latter was NASA’s primary base of operations and the first lunar-landing flight was launched from there in 1969.

The global roster of spaceports has grown immensely since Baikonur and Cape Canaveral were the only game in town. Now numerous countries have the ability to launch satellites, and many more are getting in on the action.

Wenchang Space Launch Site, on the island of Hainan, is China’s newest launch location. The site recorded its first successful launch in 2016.

Location, Location

One interesting quirk of the map above is the lack of spaceports in Europe. Europe’s ambitions for space are actually launched from the Guiana Space Centre in South America. Europe’s Spaceport has been operating in French Guiana since 1968.

Low altitude launch locations near the equator are the most desirable, as far less energy is required to take a spacecraft from surface level to an equatorial, geostationary orbit.

Islands and coastal areas are also common locations for launch sites. Since the open waters aren’t inhabited, there is minimal risk of harm from debris in the event of a launch failure.

As demand for satellites and space exploration grows, the number of launch locations will continue to grow as well.