With a telescope you can see planets, stars, galaxies, constellations, meteors and much more. This article is a guide for astronomers and astrophotographers who are enthralled by the limitless space filled with countless stars. It doesn’t require specialized training or extensive sessions. Simply get a telescope with a suitable lens, or a camera, wait until […]

The focal ratio is a metric used to determine a telescope’s brightness, magnification and field of view. This number, often referred to as the ‘f-number’, describes the relationship between focal length and aperture size. How to Calculate Focal Ratios in Telescopes? The focal ratio can be found by dividing the focal length by the diameter […]

Focal length is the distance between the telescope’s primary lens or mirror and the point where the light rays come together in focus. This is typically expressed in millimeters and is used to calculate key metrics such as focal ratio. How does Focal Length in Telescopes Affect Astronomy? Focal lengths determine the magnification and field […]

NASA’s Spitzer Space Telescope, initially known as the Space Infrared Telescope Facility, was the fourth and final of NASA’s Great Observatories. Launched on August 25, 2002, Spitzer was NASA’s primary infrared light observatory, allowing astronomers to study the universe in critical parts of the electromagnetic spectrum of light. History of the Spitzer Space Telescope NASA […]

How Did Galileo’s Telescope Impact History? Galileo Galilei was the first to point a telescope skyward, changing the course of telescope history. After news of Hans Lippershey’s telescope spread, Galileo quickly created his own with stronger magnification. This allowed him to be the first man to peer into the cosmos, essentially founding modern astronomy.  When […]

What is an Optical Telescope? An optical telescope is a telescope that uses lenses or mirrors to collect and focus light from distant objects, such as stars, galaxies, and planets. The light is magnified and projected into an eyepiece or detector, allowing astronomers to study the objects in detail, from a great distance. Who Invented […]

The history of space telescopes dates back to the early 20th century when scientists began to propose the use of telescopes, orbiting in space, to observe the universe. Throughout history, telescopes have led to significant advancements in our understanding of the universe. Who Designed the First Space Telescope? Astronomer Lyman Spitzer, considered the father of […]