Research has shown that the Earth trails an asteroid barely a kilometer across in its orbit about the Sun—only the second such body to have ever been spotted. It goes round the Sun on average two months ahead of the Earth, dancing around in front like an excited herald of our coming.

This object, known as 2020 XL₅, was first spotted in December 2020 using Pan-STARRS telescopes on the summit of Haleakala on the Hawaiian island of Maui. But determination of its orbit required follow-up observations using the 4.1-meter SOAR (Southern Astrophysical Research) telescope in Chile.

Based on this data, a team led by planetary scientist Toni Santana-Ros of the University of Alicante in Spain has now announced that 2020 XL₅ is trapped for at least the next several thousand years in an orbit about one of the Sun-Earth "Lagrange points.

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Soon, weather scientists will have an even stronger pair of eyes in the sky once a new advanced weather satellite launches this March.

The GOES-T, short for Geostationary Operational Environmental Satellite, is aiming for liftoff March 1 from Cape Canaveral Space Force Station on a United Launch Alliance Atlas V rocket thanks to a collaboration between the National Oceanic and Atmospheric Administration and NASA along with several other partners.

GOES-T, roughly the size of a small school bus, is the third in the GOES-R series of four advanced weather satellites. The value of GOES-T isn't exactly clear as the NOAA doesn't individually price out satellites one by one, said Pam Sullivan director of the GOES-R program. However, Sullivan did say the four-part project costs $11.7 billion.

"The value is returned to us public in benefits provided," Sullivan. "The observations of these satellites is even more critical now that the U.S. is experiencing a record number of billion dollar disasters."

Last year, dry and heated conditions led to an unprecedented amount wildfires in the northwest U.S. with thousands of acres burnt. Both Germany and China experienced historic flooding, and the Atlantic observed 21 named tropical systems—the third highest amount behind 2020′s 30 named storms and 2005′s 27 total.