Solar Orbiter, a joint mission by NASA and the European Space Agency, has hit its first big milestone of its sun-watching mission — and the spacecraft will soon have pictures to prove it.
The probe is designed to give scientists a view of our sun unlike any they’ve ever seen before. That’s because Solar Orbiter carries technology to gather images of our star, and its trajectory will allow it to study the poles of the sun, which never align toward Earth. And the science starts now, with the spacecraft executing its first flyby of the sun, or perihelion, today (June 15). The orbital manoeuvre brought the probe to about half the distance between the Earth and the sun, or about 48 million miles (77 million kilometres).
Solar Orbiter launched in February and carries a total of 10 instruments: six telescopes and four instruments designed to study the spacecraft’s immediate surroundings. Mission team members have been powering up and checking each instrument since shortly after the spacecraft’s launch, but this week’s data-gathering will be a new test for the probe. According to the statement, the spacecraft’s first imaging campaign will occur in the week following this close approach, or perihelion. It will take the spacecraft another week to beam those images back to Earth given its current distance from home, and the mission team expects to publish the resulting images in mid-July.