Vast glow-in-the-dark cosmic cloud near Earth shines a light on the mysteries of interstellar space

Get the key facts about this amazing discovery with our quick, 1-minute read.

• A massive hydrogen cloud named 'Eos' has been discovered just 300 lightyears from Earth
• Eos is one of the largest structures ever found in space, spanning the width of 40 full Moons
• The cloud is about 3,400 times more massive than the Sun and is crescent-shaped
• Located on the edge of the Local Bubble, Eos is among the closest molecular clouds to Earth
• Scientists detected Eos by observing ultraviolet light signatures of molecular hydrogen
• The discovery was made using data from the FIMS-SPEAR instrument aboard South Korea’s STSAT-1 satellite
• Eos poses no danger to Earth, but offers a rare opportunity to study the interstellar medium
• Its hydrogen content provides crucial insights into star and planet formation since the Big Bang

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