Welcome to The Cosmic Horizon. We bridge human curiosity with the laws of astrophysics to decode the origins, mechanics, and mysteries of the universe. From our immediate planetary neighborhood to the edge of the observable cosmos, explore the science that defines existence.
Study the formation, atmospheres, and surface geologies of worlds within our Solar System and the thousands of discovered exoplanets orbiting distant stars.
Trace the lifecycle of stars, from their births within dense nebulae to their dramatic transformations into white dwarfs, neutron stars, or black holes.
Investigate the grandest questions of space-time: the Big Bang, the expanding universe, and the elusive nature of dark matter and dark energy.
Astronomy connects mathematics, physics, technology, and imagination. Every telescope image, sky map, and spectral reading helps us understand how matter, light, gravity, and time work together across the universe.
Follow constellations, planets, meteor showers, and deep-sky objects.
Explore how satellites, probes, and telescopes gather data beyond Earth.
Decode light, radio waves, and radiation from distant objects.
Learn how evidence and models shape our view of space-time.
Understand our planet, atmosphere, Moon, and place in the Solar System.
Compare rocky planets, gas giants, dwarf planets, moons, rings, and asteroids.
Learn how stars are born, shine, age, collapse, and seed the universe.
Study galaxies, expansion, dark matter, dark energy, and space-time.
Every eclipse, meteor shower and moon phase of the year in one place. Tap a glowing date to see what happens in the sky.
Tap a legend button to highlight only those days
Your guide to the major celestial events and phenomena of 2026.
Feb 17 Best seen from Antarctica and the southern Indian Ocean.
Aug 12 Path crosses Greenland, Iceland and the Atlantic before ending over Spain. Partial phases reach Alaska, Canada, western Africa and the northern United States.
Mar 03 Seen across most of eastern Asia, Australia, the Pacific and North America.
Aug 27 Seen across most of North America, Mexico, Central and South America, the Atlantic, and most of Europe and Africa.
Whether you are an aspiring astrophysicist, an amateur astrophotographer, or a curious mind looking at the night sky, there is a place for you here. Access our data archives, sky maps, and deep-space imaging galleries.