A groundbreaking study published in June 2026 suggests Earth may not be swallowed by the Sun when it becomes a red giant. While all life will vanish much sooner, our planet could continue orbiting as a barren relic around a white dwarf. Discover the fascinating details of this cosmic revelation.

The Final Destiny of Earth: Spectacular Doom or Sterile Survival?

For decades, scientists believed our planet would be engulfed by the Sun at the end of its life. But new research offers a different, somewhat hopeful perspective on Earth's distant future.

According to a study published in June 2026 in the journal Astronomy & Astrophysics by researchers Mats Esseldeurs, Stéphane Mathis, and Leen Decin, Earth might avoid being swallowed during the Sun's red giant phase.

Life Will End Long Before the Planet Does

Currently, the Sun is about 4.5 billion years old and in its most stable phase, fusing hydrogen into helium. But this balance won't last forever. As hydrogen runs out, solar luminosity will gradually increase.

According to a study in Nature, Earth's atmosphere will remain rich in oxygen for about 1.08 billion years (with a margin of 140 million years). After that, increased solar radiation will fix carbon dioxide into rocks, depriving plants of the CO₂ needed for photosynthesis. This will cause a drastic drop in oxygen levels.

At the same time, rising temperatures will evaporate the oceans, creating water vapor that escapes into space. By the time the Sun begins its transformation, Earth will already be a desolate world—but not destroyed.

The Red Giant Phase: What Is It and What Will Happen?

In about 5 billion years, the Sun will become a red giant—a star much larger and brighter than today. While Mercury and Venus will undoubtedly be engulfed, Earth's fate depends on two opposing forces: gravitational pull inward and the Sun's mass loss pushing Earth outward.

The 2008 model suggested tides would win and Earth would fall into the Sun. However, the new 2026 model, using updated tidal dissipation calculations, gives a higher probability that Earth will survive, moving outward in its orbit as the Sun loses mass.

Evidence from the Cosmos

Telescopes have confirmed both scenarios are possible in the universe:

  • 2023: A star was observed engulfing its own planets due to tidal effects.
  • 2024: A planet of about 1.9 Earth masses was detected orbiting a white dwarf (the dense stellar remnant the size of Earth) at 2 astronomical units (AU). Scientists believe it originally orbited at 1 AU—the current Earth-Sun distance—and survived the red giant phase.

A Distant but Fascinating Future

Although Earth's biosphere has an expiration date within a billion years, it's encouraging to know the planet itself could endure, orbiting a white dwarf as a cosmic relic for eons. The end of our world won't be a quick flash, but a slow, majestic cosmic transformation!

Source: Meteored Argentina