As of the beginning of 2023, nearly 15,000 satellites are orbiting our planet. With so many orbiting bodies circling the Earth, it's a miracle they don't crash into each other, right? It might seem like magic, but in reality, it's because they aren't all orbiting at the same height. Let's take a closer look at what LEO, MEO and GEO satellites are, and why more companies are investing in LEO and MEO satellites to support space exploration.

Pulsars emit deadly radiation, disintegrating DNA and making them dangerous. Surprisingly, some have planets orbiting them, defying current theories.

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?

SpaceX has been launching 60 satellites at a time as part of their Starlink constellation. When complete, this network will provide high-speed, low-latency internet to the entire world. This project provides one example of a type of satellite orbiting at various heights above the planet’s surface. Why are satellites so essential?

The biggest dilemma of Einstein’s life represents the search of a unified theory. Scientists all over the world are currently engrossed in the quest of a unified theory where we unify all the laws of physics, be it Quantum mechanics or the Classical physics: all the laws collated in one single framework which could predict anything and everything. Currently, we have multiple theories and suggestions for the unified theory but the very promising and compelling one is “the string theory.”

Amateur astronomy is not for everybody, just like golf or football is not for everybody, but if you are sure that you want to take up the hobby of gazing at the Universe (or at least some of it) in your free time, you need to get the basics right. Getting it wrong, like so many other beginner amateurs have done, means that your expensive new equipment will almost certainly end up gathering dust in your garage - never to see starlight again.

In an earlier article we have showed you how Saturn's moon Mimas totally looks like the Death Star from the Star Wars movies. Now it seems that Mimas also looks like Pac-Man from the 1980s video game when seen in infrared.

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.

Will 3D printers be commonplace in space? What are the benefits of 3D printing in space and will we see more of it in the future? Learn more!

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?

Use solar filters for safe Sun observation. Smartphones can enhance views when attached to telescopes, but protect your eyes and adjust camera settings.