Pressure-stabilized hydrides are a new rapidly growing class of high-temperature superconductors. The remarkable properties of H3S (TC = 200 K), YH6 (TC = 224 K) and LaH10 (TC = 250 K) at 130-200 GPa catalyzed the search for superconductivity in compressed ternary (X,Y)-H polyhydrides that can be obtained by pulsed laser heating of various alloys and intermetallics with hydrogen in diamond anvil cells. My report will be devoted to modern trends in the field of hydride chemistry and superconductivity at high pressure. I will talk about recent results related to superconductivity in La-Sc-H and La-Ce-H ternary systems, including studies in strong pulsed magnetic fields up to 68 Tesla, pulsed critical current measurements up to 0.25 A. Hall effect, X-ray diffraction data and magnetoresistance of these ternary compounds will be discussed. We will also discuss preliminary SQUID measurements in high-pressure DACs, which have received a lot of attention recently. I will show the possibility of detecting light using one of the recently discovered hydride, (La,Sc)H10-12, in bolometer mode already at 230-240 K. This opens up the prospect of creating compact detectors for spectrometers that require virtually no cooling and can achieve the sensitivity of silicon detectors cooled with liquid nitrogen.