We provide a nonspecialist overview of the current state of understanding of the structure
and origin of our Solar System's transneptunian region (often called the Kuiper Belt) …

Abstract The JUpiter ICy moons Explorer (JUICE) of ESA was launched on 14 April 2023
and will arrive at Jupiter and its moons in July 2031. In this review article, we describe how …

Context. Gaia Early Data Release 3 (Gaia EDR3) provides accurate astrometry for about 1.6
million compact (QSO-like) extragalactic sources, 1.2 million of which have the best-quality …

We describe here how planetary ephemerides are built in the framework of General
Relativity and how they can be used to test alternative theories. We focus on the definition of …

The orbits of trans-Neptunian objects (TNOs) can indicate the existence of an undiscovered
planet in the outer solar system. Here we used N-body computer simulations to investigate …

Gravitational interactions in star-forming regions are capable of disrupting and destroying
planetary systems, as well as creating new ones. In particular, a planet can be stolen, where …

In this work, we investigated Bayesian methodologies for constraining in the Solar System a
Yukawa suppression of the Newtonian potential—which we interpret as the effect of a non …

Context. Recent discoveries of new trans-Neptunian objects have greatly increased the
attention by the scientific community to this relatively unknown region of the solar system …

Abstract We use Atacama Cosmology Telescope (ACT) observations at 98 GHz (2015–
2019), 150 GHz (2013–2019), and 229 GHz (2017–2019) to perform a blind shift-and-stack …

Aims. We are testing the Brans–Dicke class of scalar tensor theories with planetary
ephemerides. Methods. In this work, we apply our recently proposed Bayesian methodology …