Space News & Blog Articles

In 2023, NASA's OSIRIS-REx mission delivered samples of the 4.6-billion-year-old asteroid Bennu to Earth. Upon examining them, scientists discovered that the asteroid - which existed when the Solar System was in the earliest phase of its formation - contained amino acids, the fundamental building blocks of life as we know it. These acids are responsible for the production of proteins and peptides found in DNA. Their retrieval from space confirmed what scientists had theorized decades ago: that the ingredients for life came from space.

Many factors influence a planet's habitability. The more obvious ones include being in a star's habitable zone and having a magnetic shield to protect it from radiation. But other important factors are less obvious.

The Moon paves the way among the planets in the last half of February.

Dark energy is one of those cosmological features that we are still learning about. While we can’t see it directly, we can most famously observe its effects on the universe - primarily how it is causing the expansion of the universe to speed up. But recently, physicists have begun to question even that narrative, pointing to results that show the expansion isn’t happening at the same rate our math would have predicted. In essence, dark energy might be changing over time, and that would have a huge impact on the universe’s expansion and cosmological physics in general. A new paper available in pre-print on arXiv from Dr. Slava Turyshev, who is also famously the most vocal advocate of the Solar Gravitational Lens mission, explores an alternative possibility that our data is actually just messy from inaccuracies in how we measure particular cosmological features - like supernovae.

Nobody expects hydrogen sulphide to smell pleasant. The molecule responsible for the distinctive odour of rotten eggs hardly suggests breakthrough science. Yet its detection in the atmospheres of four distant gas giants has just answered one of planetary science's most fundamental questions: what makes a planet a planet?

The arrival of 3I/ATLAS in our Solar System spawned multiple proposals for a rendezvous mission to study it up close. As the third interstellar object (ISO) ever detected, the wealth of information direct studies could provide would be groundbreaking in many respects. However, the mission architecture for intercepting an interstellar comet poses numerous significant challenges for mission designers and planners. Chief among them is the technological readiness level (TRL) of the proposed propulsion systems, ranging from conventional rockets to directed-energy propulsion (DEP).

At just 500 kilometres across, Saturn's sixth largest moon would fit comfortably inside my home country, the United Kingdom with room to spare. Yet new research reveals this tiny ice world wields electromagnetic influence over distances exceeding half a million kilometres, more than the distance between Earth and the Moon.