Categories: Science

So that’s why the sky is dark at night

Ever wonder why the night sky is dark even though it is filled with countless stars just about as bright as the sun?

As the universe continues its ever-expansion, the doppler affect causes stars moving away from us to become redder, eventually infrared, and not visible to the human eye. And because our universe had a beginning, about 13.7 billion years ago, and light from the most distant stars has not had time to reach us, they’re aren’t enough stars to “fill up the brightest” in every direction.

But don’t take the word of a mere enthusiast, this video explains it much better.

Last week, NASA released a “new, improved portrait of mankind’s deepest-ever view of the universe” by combing 10 years of Hubble Space Telescope imagery taken of a small area of space in the constellation Fornax containing about 5,500 galaxies. Meanwhile, I was stoked just to faintly capture the Andromeda Galaxy earlier this year.

Albizu Garcia

Albizu Garcia is the Co-Founder and CEO of Gain -- a marketing technology company that automates the social media and content publishing workflow for agencies and social media managers, their clients and anyone working in teams.

Recent Posts

Competing in the post-gatekeeper era: How the DMA is rewiring platforms, security, and market access

The Digital Markets Act (DMA) has joined the General Data Protection Regulation (GDPR) as one…

9 hours ago

Horasis India Meeting to Spotlight India’s Global Ascent At Singapore Summit This Month

Amid several years of shifting global dynamics, it’s become increasingly clear that we are entering…

2 days ago

AI scams targeting businesses are surging: Here are the top 3 threats your team is likely to face in 2026 (Brains Byte Back Podcast)

Imagine a company interviewing a candidate for a senior IT role. The résumé checks out,…

2 days ago

AI Won’t Scale in Advertising Until Trust Does: How to Identify AI Tools That Deliver Quality Security and Expertise

At the start of the year, data suggested that only about a third of agencies,…

2 days ago

What It Means When Algorithms Say “I”: Toward a Theory of Digital Subjectivity

Picture an AI assistant you have worked with for the past five years. It knows…

2 days ago

Why One of the Oldest Coding Languages Still Outsmarts Modern AI

They tried to kill it. To bury it for good. But every time, it clawed back — stronger,…

2 days ago