An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

Genesis data is now producing high impact science in cosmochemistry, solar physics, coronal mass ejections, and space ...

In a vibrant collection of “essays on the future that never was,” Colette Shade takes a cold look at the cheery promise of ...

NASA's IMAP mission will delve into the mysteries of the heliosphere, mapping its boundaries and studying solar wind ...

Hubble Space Telescope mapped Andromeda, revealing a chaotic history shaped by mergers. A 2.5-billion-pixel mosaic shows 200 ...

The sun, a searing hot sphere of gas primarily composed of hydrogen and helium, boasts surface and outer atmospheric ...

In the years following the launch of NASA's Hubble Space Telescope, astronomers have tallied over 1 trillion galaxies in the universe. But only one galaxy stands out as the most important nearby ...

SpaceX's Starship is the largest rocket ever built, and when the system is fully operational and rapidly reusable it will be ...

From tariffs and a Trump/Elon break-up to artificial general intelligence, here’s what could happen in 2025, according to the Future Perfect ... transportation system — until the Covid-19 ...

It used to be rare for an orbiting satellite to spoil astronomical observations, but the skies are much more crowded ever ...

See the 10 stocks » While there's no way to tell exactly where the stock market will be a few months or a year from now, history suggests there's very good news about the future. It's easy to get ...