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Health & Science4h 19m ago
What we know about the universe suggests aliens may exist, but there are three compelling reasons why they probably aren’t visiting us.
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UNSW Sydney
Who
Carol Oliver, UNSW Sydney
What
What we know about the universe suggests aliens may exist, but there are three compelling reasons why they probably aren’t visiting us.
When
Mon, 15 Jun 2026 00:50:02 GMT · 4h 19m ago
Where
UNSW Sydney ·
Why
The three compelling reasons aliens aren't visiting are the vastness of space, the unimaginably high energy requirements for interstellar travel, and Earth's unique biosphere.
The Frontline Impact
How this affects you
Current scientific understanding of space, time, and biology makes alien visitation highly improbable, despite public belief, influencing how we perceive extraterrestrial life and prioritize research.
Story chain
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