Astronomers

Al-Farghani, also known in the West as Alfraganus

Al-Farghani (Latinized Alfraganus) was a 9th-century astronomer from Farghana, in present-day Uzbekistan, and one of the towering figures of the Islamic Golden Age. Working in Abbasid Baghdad, he wrote the...
Hamza Touhami -
Solar System

The Planets of the Solar System: A Complete Guide

The eight planets of the solar system, in order from the Sun, are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune....
Hamza Touhami -
Astrophysics

What Is a Star? A Plain-English Guide to How Stars Work

What is a star? A clear guide to what stars are made of, how they form, their life cycle, the main types, and how many stars fill the universe.
Hamza Touhami -
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Astrophysics

What Is a Nebula? A Stargazer’s Guide to the Clouds That Build Stars

A clear guide to what a nebula is — the types, how they form, famous examples, and how astrophotographers capture these cosmic clouds of gas and dust.
Hamza Touhami -
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Astrophysics

Radio Astronomy: How We See the Universe in Radio Waves

Radio astronomy is the branch of astronomy that studies the universe through radio waves — the longest,...
Hamza Touhami -
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Astrophysics

Types of Astronomy: A Guide to Every Branch of the Science

The types of astronomy are the many different ways scientists study the universe — and there are...
Hamza Touhami -
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Astrophotography

It was half past six and the hands were quietly moving forwards. Despite his concern, it was later than half past, more like quarter to seven.

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What Happens If an Asteroid Hits Earth?

The thought of an asteroid hitting Earth sounds like the plot of a disaster movie, but in 2026 it is a question that...
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Meteor Showers: A Complete Stargazer Guide

Meteor showers are nature’s most accessible celestial fireworks — brief streaks of light that flash across the night sky when Earth plows through...
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Eris: The Dwarf Planet That Demoted Pluto

Eris is the distant, icy dwarf planet whose 2005 discovery directly triggered the demotion of Pluto in 2006, forcing astronomers to finally agree...
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Men & Women in Astronomy

Sat upright, raising a heavy fur muff that covered the whole of her lower arm towards the viewer. He then turned to look out the window.

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Henrietta Swan Leavitt: Measuring the Universe (2026)

Quick answer: Henrietta Swan Leavitt (1868–1921) was an American astronomer who discovered how to measure distances across the universe. Working at Harvard, she...
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Vera Rubin: The Astronomer Who Proved Dark Matter (2026)

Quick answer: Vera Rubin (1928–2016) was an American astronomer who found the first convincing observational evidence for dark matter. By measuring how stars...
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Hypatia of Alexandria: Astronomer and Mathematician

Quick answer: Hypatia of Alexandria (c. 350–415 AD) was a Greek mathematician, astronomer and philosopher who led the Neoplatonic school in Roman Egypt...
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Latest Posts

It was half past six and the hands were quietly moving forwards.

Astrophysics

What Is Cosmology? The Science of the Whole Universe, Explained

Cosmology is the science of the universe as a whole. This beginner-friendly guide explains the Big Bang, the expanding universe, the cosmic microwave background, dark matter and dark energy.
Hamza Touhami -
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Astrophotography Fundamentals

Plate Solving and Framing: Find and Center Any Target

Plate solving is software that looks at a photo of the night sky, identifies the star pattern...
Hamza Touhami -
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What Is Astrometry? A Complete Guide to Measuring the Stars

Quick answer: Astrometry is the branch of astronomy that precisely measures the positions, distances, and motions of stars and other celestial objects. By tracking exactly where objects sit on the...
Hamza Touhami -
Astrophysics

What Is a Star? A Plain-English Guide to How Stars Work

What is a star? A clear guide to what stars are made of, how they form, their life cycle, the main types, and how many stars fill the universe.
Hamza Touhami -
Read
Astrophysics

What Is a Nebula? A Stargazer’s Guide to the Clouds That Build Stars

A clear guide to what a nebula is — the types, how they form, famous examples, and how astrophotographers capture these cosmic clouds of gas and dust.
Hamza Touhami -
Read
Solar System

What Happens If an Asteroid Hits Earth?

The thought of an asteroid hitting Earth sounds like the plot of a disaster movie, but in...
Hamza Touhami -
Read
Solar System

Eris: The Dwarf Planet That Demoted Pluto

Eris is the distant, icy dwarf planet whose 2005 discovery directly triggered the demotion of Pluto in...
Hamza Touhami -
Read

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