After reading this space timeline, I have wondered how they managed to make these assumptions about various events like when the first black holes formed. This is obviously far beyond the good ol'…
I've heard that some astronomers are building an artifical solar-eclipse ship, that should help us to dim the diffraction of the Sun. Why don't we just wait till night? What is the function of the
Using transit photometry astronomers were able to discover Trappist b through h. Based on this question we learn that the naming of planets is based on their distance from their star (b being the c…
I happen to live in two places that are literally at the same longitude but several thousand kilometers apart from each other (~47°N and ~68°N). It's just a few days until equinox - and I assumed t…
Is there a legend for these 88 Hubble Space Telescope images? I have a 6000px x 4800 px version of this image (reduced & rotated to 480x600 here) that I use for an image slide show. I would l…
Dizionario astronomico di Marte, lettera M Marte fa parte dei cosiddetti pianeti terrestri (Mercurio, Venere, Terra e Marte), cioè quelli che hanno una crosta superficiale solida e densità piuttosto elevate. Ha una distanza media dal Sole di 227,9 milioni di km., Ma la sua orbita è relativamente eccentrica e, quindi, nel perielio (distanza minima dal Sole) si avvicina alla stella centrale fino a 206,7 milioni di km.
