Changes in Earth's Inner Core Shape

Scientists have found evidence that the inner core of the Earth may have changed shape by over 100m in the past 20 years, potentially due to interactions with the outer core. This could impact Earth's magnetic field and overall planet dynamics.

NASA's Double Asteroid Redirection Test (DART) mission

NASA's DART mission successfully changed the trajectory and shape of the asteroid Dimorphos, demonstrating the ability to protect Earth from potential collisions.