A map of the stars by John Flamsteed, 1776

Spider in the Telescope: The Mechanization of Astronomy

John Flamsteed’s vision of an astronomer's skill set clashed with existing ideas about observing, paving the way for a new mindset based on mechanical objectivity.
The location of T Coronae Borealis (circled in cyan)

John Birmingham’s Discovery of the Blaze Star

John Birmingham discovered T Coronae Borealis in the narrow window when astronomy flourished in nineteenth-century Ireland.
An image of Enceladus assembled using infrared, green, ultraviolet, and clear filtered images taken by Cassini on July 14, 2005

Saturn’s Ocean Moon Enceladus Is Able to Support Life

This research team is working out how to detect extraterrestrial cells in the liquid water ocean hidden beneath Enceladus’s icy crust.
Onlookers gaze upon and photograph the Northern Lights at Chanticleer Point Lookout on the Columbia River Gorge in the early morning hours of May 11, 2024 in Latourell, Oregon

Aurorae and the Green of the Night Sky

On the historical hunt for the origin of the enigmatic green line in the spectrum of the aurora borealis.
IceCube Neutrino Observatory in 2023

IceCube Detector Confirms Deep-Space “Ghost Particle” Phenomenon

IceCube scientists have detected high-energy tau neutrinos from deep space, suggesting that neutrino transformations occur not only in lab experiments but also over cosmic distances.
The OmegaCAM imager on ESO’s VLT Survey Telescope has captured this glittering view of the stellar nursery called Sharpless 29. Many astronomical phenomena can be seen in this giant image, including cosmic dust and gas clouds that reflect, absorb, and re-emit the light of hot young stars within the nebula.

How the Universe Forges Stars from Cosmic Clouds

A deep dive into the chaotic journey of star formation.
MeerKAT telescopes

MeerKAT: The South African Radio Telescope That’s Transformed Our Understanding of the Cosmos

MeerKAT has emerged as a beacon of innovation and opportunity on the African continent.
Illustration of a time when the Earth was being formed, known as the Hadean Period.

Crucial Building Blocks of Life on Earth Can More Easily Form in Outer Space

A special group of molecules, known as peptides, can form more easily under the conditions of space than those found on Earth.
Looking northwards in the Isle of Skye Scotland

Surprising Discovery Challenges Key Principle of Modern Cosmology

Observations of an enormous cosmic structure, dubbed the "Big Ring," seem to violate the Copernican principle.
An illustration of Spaghettification from NASA's Imagine the Universe!

“Spaghettification”: How Black Holes Stretch Objects into Oblivion

Want to avoid getting “spaghettified” by a black hole? Steer clear of the smaller ones.