🔭 Will extraterrestrial life be discovered by a private company?

How can we identify stars likely to host planets suitable for life? This question has long motivated astronomers, and an innovative method is developing with the arrival of private space observatories. The very first commercial space telescope, named Mauve, has just transmitted its first measurements from its orbit around Earth.

No larger than a suitcase, this compact instrument pointed its sensors toward the star Eta Ursae Majoris, recording its visible and ultraviolet light. This operation begins a mission to monitor the activity of nearby stars, with the goal of more precisely identifying those around which hospitable exoplanets could orbit.


Traditionally conducted by government agencies, space astronomy is seeing its landscape evolve with players like Blue Skies Space. By commercializing observation time, these companies allow researchers to obtain data more quickly, thus helping to fill certain gaps in our knowledge. This approach favors specialized observations, without the usual delays associated with public programs.

The detection of ultraviolet light constitutes Mauve's main objective. This portion of the spectrum is ideal for spotting stellar flares, bursts of energy from the magnetic regions of stars. These events can bombard the surroundings with energetic particles, potentially altering conditions on any neighboring planets. Although the Hubble telescope also performs this type of measurement, the high demand for its use justifies the commissioning of a dedicated instrument.

Stellar flares have varied effects. Earth's magnetic field protects us from those of the Sun, but on Mars, the lack of such protection exposes the atmosphere to erosion. By observing these phenomena on other stars, Mauve will help identify those whose behavior is sufficiently calm to allow planets to maintain stable conditions, an important factor for the development of life.


The design of Mauve was rapid, taking only three years, thanks to the use of existing technologies and economical satellite platforms. Built by a European consortium, it is expected to operate for at least three years. The revenue generated by this mission will fund the company's next project, Twinkle, which will directly analyze exoplanet atmospheres. Already, international scientific institutions have subscribed to receive Mauve's data.

This new phase of commercial astronomy does not replace major government missions, but rather complements them. While observatories like James Webb push technological boundaries, private satellites like Mauve increase availability for scientific research.