Earth, Moon and PN7
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This article originally published at Earth just got a new companion in space. It's sticking around for 60 years.. A one-way trip to the Mars usually takes you about 9 months to complete, but one team out of Russia thinks they can knock that down to 30 days. "It felt like I was watching the sandworms in the film 'Dune.'"
Exoplanet hunters Christopher Watson and Annelies Mortier explain the long search for a 'twin Earth' capable of sustaining life.
Astronomers observe for the first time the actual motion of spirals in a protoplanetary disk, revealing gravitational instability in IM Lup.
The star WISPIT 2 was first observed using VLT-SPHERE (Very Large Telescope – Spectro-Polarimetric High-contrast Exoplanet REsearch), a ground-based telescope in northern Chile operated by the European Southern Observatory. In these observations, the rings and gap around this star were first seen.
The wavelengths of radio light are so large that you can't capture a high-resolution image with a single dish. To capture an image as sharp as, say, the Hubble telescope, you'd need a radio dish tens of kilometers across.
Earth has picked up a new space companion-at least for a while. Astronomers recently discovered a tiny asteroid quietly following our planet around the Sun, acting like a second moon 2025 PN7 is part of a rare group of asteroids known as the Arjuna class,