5 hours ago · Global
Are 'mega-Earths' real? Stellar activity may explain these oversized rocky worlds

What's happening
SignalsMonitor is following this as a technology story. Phys.org Breaking News is the outlet attached so far. The reports are tied to Global. The first report grouped here was at 22 Oct 2026, 13:50 UTC. The headline in use is “Are 'mega-Earths' real? Stellar activity may explain these oversized rocky worlds”. This note is SignalsMonitor's own briefing, not the publisher's article.
What we know
A new study suggests that some of the heaviest rocky planets ever reported may not be as heavy as they look. These so-called 'mega-Earths,' rocky planets weighing more than about 10 Earths, could be an illusion created by activity on their host stars.
Story timeline
Reports grouped into this story, earliest first. Exact repeats from the same outlet are collapsed.
- First reported by Phys.org Breaking News
Are 'mega-Earths' real? Stellar activity may explain these oversized rocky worlds
Reported by 1 outlet
- Phys.org Breaking News
- Phys.org Breaking NewsAre 'mega-Earths' real? Stellar activity may explain these oversized rocky worlds