LingVo.club
📖+10 XP
🎧+10 XP
✅+15 XP
Study: Many mini‑Neptunes may have solid surfaces (Level A1) — an artist's rendering of a star and a planet

Study: Many mini‑Neptunes may have solid surfacesCEFR A1

2 Dec 2025

LevelA1
A2
B1
B2

Adapted from Louise Lerner-Chicago, Futurity • CC BY 4.0

Photo by NASA Hubble Space Telescope, Unsplash

Level A1 – Beginner
2 min
72 words
  • Mini‑Neptunes are a little smaller than Neptune in size.
  • They have rock and metal inside their cores.
  • A thick atmosphere of hydrogen and helium surrounds them.
  • Scientists often thought these planets had global magma seas.
  • The new study used telescope observations and computer models.
  • James Webb observed GJ 1214 b and its atmosphere.
  • Heavier atmospheres add weight and cause extreme surface pressure.
  • Under such pressure molten rock can become solid again.

Difficult words

  • atmosphere — layer of gas around a planet
  • cores — the central inside part of a planet
  • magma — very hot liquid rock under a surface
  • telescope — tool to look at distant space objects
  • pressure — force on a surface from weight or gas
  • molten — very hot and melted, not solid

Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.

Discussion questions

  • Have you ever looked at the sky with a telescope?
  • Do you want to learn more about planets?

Related articles

Mother helps set fetal biological clock (Level A1)
15 Apr 2026

Mother helps set fetal biological clock

Researchers found that a mother sends timing signals to her fetuses so their circadian clocks match her day–night cycle. The finding comes from a study that tracked clock protein activity in pregnant mice and links timing to maternal hormones.

Level
A1
A2
B1
B2
Read