Each of the planets, labeled b, c, d, and e, has a mass between 20% and 30% of Earth's, making them among the smallest yet ...
Scientists are using an array of instruments to detect other planets, some of which may harbor life—and others that most ...
Barnard’s Star is notorious among astronomers for a history of false planet detections but it appears the latest discovery – ...
Astronomy on MSN2d
How we study our planet
We often focus on space observatories that peer beyond Earth. But the vast majority of satellites stare right back at us.
Astronomy on MSN1dOpinion
Earth as a planet
Yet despite the drumbeat of evidence, we still know of just one planet in the cosmos with life — the one you’re standing on.
An asteroid discovered over 200 years ago which is roughly the size of Germany would have catastrophic consequences for life ...
Mar. 17, 2025 — The James Webb Space Telescope has captured its first direct images of carbon dioxide in a planet outside the solar system in HR 8799, a multiplanet system 130 light-years away ...
So in some sense, alien worlds were not first discovered in the 1990s or even the 1980s. It took nearly a century to fully ...
Mar. 17, 2025 — The James Webb Space Telescope has captured its first direct images of carbon dioxide in a planet outside the solar system in HR 8799, a multiplanet ... Combination of Cosmic ...