Imagine finding a new Earth-like planet just 146 light-years away—a place that could potentially support life. Sounds like a dream, right? But here’s where it gets controversial: this promising world, named HD 137010 b, might be a frigid -70°C, more akin to Mars than our cozy blue planet. So, is it a habitable paradise or an icy wasteland? Let’s dive in.
An international team of scientists from Australia, the UK, the US, and Denmark made this groundbreaking discovery using data from NASA’s Kepler space telescope’s extended mission, K2. HD 137010 b is about 6% larger than Earth and orbits a sun-like star in a remarkably Earth-like 355-day cycle. Dr. Chelsea Huang from the University of Southern Queensland (USQ) explains, ‘What’s truly exciting is its proximity—just 146 light-years away. Compared to Kepler-186f, the next best candidate, which is four times farther and 20 times fainter, this is a game-changer.’
And this is the part most people miss: the planet was first spotted by a team of citizen scientists, including Dr. Alexander Venner, who was still in high school at the time. ‘I started with the Planet Hunters project as a teenager, and it shaped my entire career,’ Venner recalls. ‘To revisit this work and uncover such a significant discovery was surreal.’ The team initially doubted their findings, but after rigorous checks, Huang confirms, ‘It’s a textbook example of a planetary transit.’
The star HD 137010 b orbits is cooler and dimmer than our Sun, which could explain the planet’s Mars-like temperatures. But here’s the twist: while it’s ‘within reach of next-generation telescopes,’ as Huang puts it, its habitability remains uncertain. Dr. Sara Webb, an astrophysicist not involved in the study, cautions, ‘We’ve only detected one transit so far. In planetary science, we aim for three detections to confirm a discovery.’*
Bold interpretation alert: What if HD 137010 b isn’t an Earth-like world at all, but a ‘super snowball’—a massive icy planet with frozen oceans? Webb suggests this is a real possibility. And even though 146 light-years sounds close in cosmic terms, reaching it would take tens of thousands of years with current technology. ‘It’s a reminder of how vast our galaxy truly is,’ she adds.
So, is HD 137010 b a future home for humanity or just another icy rock in space? The discovery, published in Astrophysical Journal Letters, raises more questions than answers. What do you think? Could this planet surprise us, or are we reading too much into a single transit? Let’s debate in the comments!
