Mercury is shrinking much more than scientists realized
Mercury is contracting at a rate significantly higher than prior estimates, with contraction totals possibly exceeding earlier beliefs by up to 30 percent. As the smallest planet in the solar system, its cooling core forces the surface to collapse, creating an expansive rupes system and bright ray systems. Recent studies place the planet's lost radius at 7.2 miles. Rough terrain hides evidence of this dramatic planetary contraction, as scientists discover that wrinkles are missing from the roughest ground. Evaluations continue to check whether actual shrinkage surpasses even these updated metrics.
Listen to Live Briefing
Real-time synthesized voice briefing · Live Feeds Desk
- ✓ Mercury is shrinking faster than expected as its cooling core forces the surface to collapse.
- ✓ The amount of shrinkage appears to be up to 30 percent greater than previously believed.
- ✓ A study found that wrinkles on Mercury are missing from its roughest ground, placing the planet's lost radius at 7.2 miles.
What changed
Recent findings show that Mercury's lost radius has reached 7.2 miles, with contraction totals potentially exceeding earlier estimates by up to 30 percent.
Live updates
-
Mercury Shrinks Faster Than Expected
Mercury is contracting at a rate significantly higher than prior estimates, with contraction totals possibly exceeding earlier beliefs by up to 30 percent. As the smallest planet in the solar system, its cooling core forces the surface to collapse, creating an expansive rupes system and bright ray systems. Recent studies place the planet's lost radius at 7.2 miles. Rough terrain hides evidence of this dramatic planetary contraction, as scientists discover that wrinkles are missing from the roughest ground. Evaluations continue to check whether actual shrinkage surpasses even these updated metrics.
Why it matters
The smallest planet in the solar system is losing physical size as its core cools and forces the rocky terrain to collapse. Wrinkles across the surface serve as vital clues regarding its historical dimensions over the last 4.5 billion years.
What is confirmed
- Mercury is shrinking faster than expected as its cooling core forces the surface to collapse.
- The amount of shrinkage appears to be up to 30 percent greater than previously believed.
- A study found that wrinkles on Mercury are missing from its roughest ground, placing the planet's lost radius at 7.2 miles.
Still unconfirmed
- Ongoing evaluations are checking if actual shrinkage surpasses the updated metrics.
What to watch next
- An upcoming probe is due in orbit on Nov. 21.
confidence 95%Sources used for this update (6)
- www.skyatnightmagazine.com — Mercury is shrinking faster than expected. Here's how the ...
- www.youtube.com — Mercury’s Hidden Wrinkles Reveal More Shrinkage - YouTube
- theskyscrapers.org — Shedding Light on a Shrinking Planet - Skyscrapers, Inc.
- www.birdsadvice.com — Mercury Could Be Smaller Than Its Ancient Size By Miles
- www.ecoticias.com — Scientists found fewer wrinkles on Mercury's roughest ground ...
- www.scientificamerican.com — Stories by Mary Randolph | Scientific American
-
Mercury Contracts Faster Than Realized As Core Cools
Mercury is shrinking at a rate faster than prior estimates indicated as its cooling core forces the surface to collapse. Wrinkles across the planet serve as vital clues regarding its previous size over the last 4.5 billion years. As the smallest planet in the solar system and closest to the Sun, its rocky terrain features an expansive rupes system generated from thrust faults and bright ray systems formed by ejecta. Current data shows contraction totals may exceed earlier beliefs by 30 percent, with ongoing evaluations checking if actual shrinkage surpasses even these updated metrics.
Why it matters
Understanding Mercury provides astronomers with deeper insight into the thermal history and tectonic evolution of rocky worlds in the solar system. The planet holds the highest delta-v requirement for travel from Earth, making direct study historically difficult. Researchers rely on surface features like thrust faults to piece back together the planetary contraction history hidden beneath a heavily cratered exterior.
What is confirmed
- Mercury is the first planet from the Sun and the smallest in the solar system.
- The planet features an expansive rupes system generated from thrust faults and bright ray systems formed by ejecta.
- Its largest crater, Caloris Planitia, has a diameter of 1,550 km.
What to watch next
- Further evaluation by scientists to determine if actual shrinkage exceeds the updated 30 percent contraction figures.
- Additional analysis of surface wrinkles and rupes systems to refine models of the cooling core.
confidence 90%Sources used for this update (10)
- fromtheheartproductions.com — Roy W. Dean Grant Winners - From the Heart Productions Inc
- www.sciencefocus.com — Mercury is shrinking faster than anyone thought | BBC Science Focus Magazine
- en.wikipedia.org — Mercury (planet) - Wikipedia
- mercurys.com — Mercurys Coffee Co.
- en.wikipedia.org — Mercury (element) - Wikipedia
- science.nasa.gov — Mercury - Science@NASA
- app.mercury.com — Log in - Mercury
- science.nasa.gov — Mercury Facts - Science@NASA
- mercury.com — Mercury
- www.mercuryinsurance.com — Auto, Home, Business Insurance & More | Mercury Insurance
-
Mercury shrinking faster than previous scientific estimates
Mercury is contracting more rapidly than researchers previously estimated as its cooling core causes the surface to collapse. This shrinkage has occurred over the last 4.5 billion years, though the planet's cratered surface has hidden the evidence. While the planet remains the smallest in the solar system, current data suggests the total contraction may be 30% greater than earlier beliefs. Scientists are now evaluating if the actual shrinkage exceeds even these updated figures.
Why it matters
Mercury is one-third the width of Earth and 1/29th the width of Jupiter. The planet's size and composition provide a window into the early formation of the solar system. Understanding the rate of core cooling helps scientists model the thermal evolution of rocky planets.
What is confirmed
- Mercury is shrinking more than previous estimates suggested.
- The planet's surface is contracting as its core cools.
- Impacts from space objects obscured evidence of the planet's contraction.
Still unconfirmed
- Total shrinkage could be 30% more than previously thought.
- Mercury may be even smaller than updated estimates suggest.
What to watch next
- Data confirming the exact percentage of total shrinkage
- New measurements of the core cooling rate
confidence 90%Sources used for this update (2)
- www.vice.com — Mercury Is Slowly Collapsing in on Itself, and It’s Worse Than We Thought
- www.nature.com — Mercury is shrinking with age — faster than thought
-
Mercury shrinking faster and more than scientists previously estimated
Mercury is contracting at a rate that exceeds previous scientific expectations. New evidence suggests the planet is shrinking faster than once believed, with some estimates indicating the total shrinkage could be 30% more than previously thought. The planet's cratered surface likely concealed evidence of these ancient contractions from researchers. Mercury remains the smallest planet in the solar system, measuring one-third the width of Earth and 1/29th the width of Jupiter. Scientists are currently investigating if the planet is even smaller than these updated estimates suggest.
Why it matters
The physical contraction of a planet provides insight into its internal cooling and geological history. Understanding the rate of shrinkage helps researchers model the evolution of planetary cores. This discovery challenges previous assumptions about the timeline of Mercury's formation and cooling.
What is confirmed
- Mercury is shrinking faster than scientists previously thought.
- Mercury is the smallest planet in the solar system.
- Mercury is one-third the width of Earth.
- Mercury is 1/29th the width of Jupiter.
Still unconfirmed
- Mercury may have shrunk 30% more than previously realized.
- Scientists are investigating if Mercury is even smaller than current expectations.
What to watch next
- Further analysis of surface craters to confirm the exact percentage of contraction
- New data on the cooling rate of Mercury's core
confidence 90%Sources used for this update (9)
- USA Today — Hidden clues show Mercury shrank more than previously thought
- The New York Times — Mercury Is Shrinking, and Faster Than We Thought
- Time Magazine — The Planet Mercury Has Been Shrinking—More Than Scientists Expected
- CNN — Scientists are trying to figure out if Mercury is even smaller than expected
- Mashable — Mercury is shrinking much more than scientists realized
- Scientific American — The planet Mercury is shrinking far faster than we thought
- www.columbian.com — Mercury shrinking faster than previously was believed
- thedebrief.org — Mercury May Have Shrunk Far More Than Scientists Realized—and Its Cratered Surface Was Hiding the Evidence
- www.newyorker.com — The Incredible Journey of a Migratory Shorebird
Community Sentiment: How do you assess this situation?
Voice your perspective · Real-time aggregated sentiment from the Live Feeds community