We've been dreaming of the stars for longer than we can remember, staring up at the twinkling lights that fill the night sky and wondering what they are. We've even written songs about them. Centuries ago, before the advent of GPS, explorers and adventurers relied on celestial navigation to help them map a path to their destination. What is celestial navigation, how does it work and when was it relied upon?

If you’re lucky when you look up in the sky at night, you might see a shooting star. As you’re making your wish, what you’re actually seeing is a small piece of rock or space junk burning up in the atmosphere. The friction of re-entry causes the shooting star to ignite and burn, which is why you see a brief flash of light.

The Internet of Things has the potential to change our world immensely. It will present new opportunities, as well as new challenges. IoT refers to the idea of connecting virtually any electronic device to the Internet and connecting them through the Internet to each other. Astronomers have also jumped in on the IoT conversation, and it turns out they have some issues with the up-and-coming network of connected devices.

Sometimes it's all in the details. Something as simple as polyurethane foam made the modern space shuttle a possibility. This crucial material opened up a range of new options for spacecraft, as well as everyday objects.

When we think about space-age technology and exploring the Cosmos, we usually think of metals, foils and ceramics. But what about textiles? As many NASA engineers can tell you, textiles have always been an unsung hero in the world of material science. But if the future of space exploration pans out the way engineers expect, humanity's status as a spacefaring species will see the inclusion of — and even come to depend on — advanced new types of fabrics, textiles and membranes.

As a species, we're working on expanding our horizons — literally — by making our first forays into outer space. Despite this push toward space exploration, there is still a lot about the universe around us that we don't know, and a lot that we don't even know to ask about yet. On top of that, much of the data that we could be collecting from outer space is invisible to the human eye. What tools are scientists using to gather data in space?

While we're excited to see the Artemis astronauts make their way to the lunar surface, they aren't the first human beings to set foot on the moon. How did NASA choose the Apollo astronauts for the 1969 mission? How has the selection process changed over the years, and what is NASA looking for in its Artemis astronauts?

Cell phones aren't the only technology we've plucked from science fiction. Let's take a closer look at LightSail — what it is, how it works and how it might change the way we look at interstellar travel.

Stunning celestial photos by NASA capture Jupiter's abyss, lunar sunrise, dying star Eta Carinae, cosmic rose Rosette Nebula, and more wonders.

It's been a long time since we've sent people to the moon. The last human being set foot on our satellite in 1972 and though China has sent probes to the dark side of the Moon, no humans have visited it in decades. In spite of this, many countries are still looking up into the night sky and wonder if the moon has more to offer. One company is working on exploring that potential in the future. Why is Lunar Outpost designing small rovers for use on the moon?

Discover the transformation of astronaut food from toothpaste-like tubes to modern menus. Explore the potential of growing food in space.

Space tourism poses health risks, but short trips are manageable for people in average health. Psychological impacts, like space anxiety, are crucial.

Black holes are one of the most terrifying things in the universe. It shows the real power of gravity, which is usually a relatively weak force when it grows large enough. Eventually, it becomes sufficient to control entire galaxies. But we don’t know as much about black holes as we might like. We understand them mostly from a mathematical perspective, although we have been able to observe their behavior by watching the things around them. Black holes are a well-known and now proven phenomenon, but intermediate black holes are a whole different ball game, mostly because they’re still hypothetical. They start out as stellar black holes. These are the smallest…