Astronomers have attempted to explain the non-gravitational acceleration of comet 3I/ATLAS, our third confirmed interstellar visitor, in a way that removes the need for "non-natural hypotheses for ...

Within the diameter of Jupiter’s orbit around the Sun, the coincidence between the perijove distance and the Hill radius has a statistical likelihood smaller than 0.00004. In case the ...

On October 30, 2025, the radial acceleration component A1—normalized at a heliocentric distance of 1 au—was listed as 1.6×10⁻⁶ ...

NASA’s confirmation that comet 3I/ATLAS is experiencing a subtle but real non‑gravitational acceleration has turned a niche ...

I/ATLAS's unexpected acceleration is likely caused by mass loss and outgassing as it passes close to the sun, not advanced ...

I/ATLAS is expected to reach its closest distance to Jupiter on March 16, 2026. Its approach may coincide with Jupiters Hill ...

If we find technological satellites of Jupiter that we did not send, it would imply that Jupiter is of interest to an ...

Mysterious interstellar object 3I/ATLAS could be passing by Jupiter to "seed" the planet with "technological devices." ...

You see this all the time in textbooks: This is often described as "the acceleration due to gravity". Is this really the best thing to call this? No. A better name would be "the local gravitational ...

One of the most astonishing facts about science is how universally applicable the laws of nature are. Every particle obeys the same rules, experiences the same forces, and sees the same fundamental ...

An illustration of an accelerating space rocket in Tom Siegfried’s essay “Getting a grip on gravity” (SN: 10/17/15, p. 16), explained that a clock at the top of the ship would tick faster than one at ...