✦ Astrophiles Blog

Knowledge & Resources

Astronomy insights, mission updates, and stargazing guides — exploring the cosmos, one post at a time.

4 planet alignment April 2026 pre-dawn eastern sky

4 Planet Alignment April 2026: An Epic Viewing Guide

The highly anticipated 4 planet alignment April 2026 features Mercury, Mars, Saturn, and Neptune clustered tightly in the pre-dawn eastern sky. While early risers can easily spot Mars, Saturn, and Mercury with the naked eye, you will absolutely need optical equipment to spot Neptune and complete the parade. If you are willing to set your alarm … Read more

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Early telescopic Moon drawings by Thomas Harriot from 1609, showing the first recorded observation and early lunar mapping.

Thomas Harriot and the 5 Revolutionary Lunar Observations That Changed Astronomy

On 26 July 1609, Thomas Harriot, an English mathematician and natural philosopher, achieved a foundational milestone in the history of astronomy by conducting the earliest known telescopic observations of the Moon. Using a modest 6× “Dutch trunk” refracting telescope, Harriot carefully sketched the lunar surface, inaugurating a new era of empirical astronomical research and reshaping … Read more

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